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Does the new hardware call for a graphics processor?
I know that Steve Jobs never sells a piece of hardware without a dedicated graphics processor, such as in the iPhone (PowerVR MBX-Lite graphics processor), or the Macbook (NVIDIA GeForce 9600M GT).
In windows machines, it is always an after-thought.
Snapdragon includes a perfectly reasonable graphics chip.
It just needs to be utilized with good drivers.
Shasarak said:
Snapdragon includes a perfectly reasonable graphics chip.
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Click to collapse
so no dedicated graphics processor?
Looks like iphone will still rule.
chiks19018 said:
so no dedicated graphics processor?
Looks like iphone will still rule.
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Click to collapse
Like everything else, we'll have to wait for MIX. But with their massive push into gaming and focus on XNA, I have no doubt that the graphics capability will be at least as good as if not light years ahead of iPhone.
RustyGrom said:
Like everything else, we'll have to wait for MIX. But with their massive push into gaming and focus on XNA, I have no doubt that the graphics capability will be at least as good as if not light years ahead of iPhone.
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I sure do hope. But history says otherwise. MS never pushed for a graphics card with any of it's products as a "required" item. If the same happens here and Apple develops a new iphone 4gs with an even more powerful processor and as usual combine a dedicated graphics processor, then WP7 will be in the same boat as now.
chiks19018 said:
I sure do hope. But history says otherwise. MS never pushed for a graphics card with any of it's products as a "required" item. If the same happens here and Apple develops a new iphone 4gs with an even more powerful processor and as usual combine a dedicated graphics processor, then WP7 will be in the same boat as now.
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What part of WP7 is like WM6? It's entirely different. Microsoft had practically no hardware requirements before, now they're being super strict. Gaming is a huge portion of their focus. We should know more next week at GDC. Besides, Snapdragon includes full 3d acceleration. There's no need for a discrete graphics chip as far as I'm aware.
Shasarak said:
Snapdragon includes a perfectly reasonable graphics chip.
Click to expand...
Click to collapse
chiks19018 said:
so no dedicated graphics processor?
Looks like iphone will still rule.
Click to expand...
Click to collapse
What?! No, I said Snapdragon includes a perfectly reasonable graphics chip. How on Earth did you interpret that as meaning the exact opposite of what I said???
Snapdragon is not just a CPU. Snapdragon is a chipset, an entire mobile phone platform that consists of several separate chips. One of them is the CPU. Another of them is a graphics chip (or, if you prefer to phrase it that way, a "dedicated graphics processor") made by ATI/AMD. Honestly, have you never seen the Electopia demo running on a Snapdragon phone? The graphics are really quite impressive.
Yes, the Snapdragon GPU is somewhat less powerful than the one in the iPhone 3GS, but it's not an order of magnitude difference, and the faster CPU in Snapdragon (coupled with improved NEON instructions) somewhat compensates. Certainly the Snapdragon GPU is way more powerful than the one included with MSM72xx, and even that can run Xtrakt quite happily; it's miles ahead of the one in the iPhone 3G, too.
Shasarak said:
What?! No, I said Snapdragon includes a perfectly reasonable graphics chip. How on Earth did you interpret that as meaning the exact opposite of what I said???
Snapdragon is not just a CPU. Snapdragon is a chipset, an entire mobile phone platform that consists of several separate chips. One of them is the CPU. Another of them is a graphics chip (or, if you prefer to phrase it that way, a "dedicated graphics processor") made by ATI/AMD. Honestly, have you never seen the Electopia demo running on a Snapdragon phone? The graphics are really quite impressive.
Yes, the Snapdragon GPU is somewhat less powerful than the one in the iPhone 3GS, but it's not an order of magnitude difference, and the faster CPU in Snapdragon (coupled with improved NEON instructions) somewhat compensates. Certainly the Snapdragon GPU is way more powerful than the one included with MSM72xx, and even that can run Xtrakt quite happily; it's miles ahead of the one in the iPhone 3G, too.
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Click to collapse
And thats for qsd8250.
Newer generation of snapdragon(msm8xxx and dual core QSD8672) has 4x greater performance than the snapdragon1. Don't know how's msm7x30 graphics performance. Besides we don't know which snapdragon chip will be used in windows phones.
It could either be qsd8650a which is 30% faster than the one used in HD2 or it could be the new msm7x30 or it could even be the high end msm8xxx which supports 1,3Ghz CPU, 1080p video and 4x faster GPU - hopefully it won't be qsd8250 which is manufactured at 65nm but something newer at 45nm. Power efficiency is very important, besides those newer chips just like tegra should be able to shutdown unused parts to minimize power consumption.
Out of curiosity - What's stopping WP7s manufacturers from using Tegra chips? I know Microsoft is working closely with Qualcomm, but does that automatically disqualify Nvidia as a supplier?
Regards
Silverdragondk said:
Out of curiosity - What's stopping WP7s manufacturers from using Tegra chips? I know Microsoft is working closely with Qualcomm, but does that automatically disqualify Nvidia as a supplier?
Regards
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Click to collapse
Well MS clearly stated that qualcomm is first chip supplier for Windows Phones. Probably in the future they will allow tegra, omap and probably samsung chips too.
For now we are stuck with snapdragon which isn't that bad IMO.
Silverdragondk said:
Out of curiosity - What's stopping WP7s manufacturers from using Tegra chips? I know Microsoft is working closely with Qualcomm, but does that automatically disqualify Nvidia as a supplier?
Regards
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Click to collapse
Drivers. MS isn't giving the OEMs as much control over the lower level OS and is developing all of the drivers themselves. No more will we have the problem of HTC deciding that 3d drivers aren't needed.
Wishmaster89 said:
And thats for qsd8250.
Newer generation of snapdragon(msm8xxx and dual core QSD8672) has 4x greater performance than the snapdragon1. Don't know how's msm7x30 graphics performance. Besides we don't know which snapdragon chip will be used in windows phones.
It could either be qsd8650a which is 30% faster than the one used in HD2 or it could be the new msm7x30 or it could even be the high end msm8xxx which supports 1,3Ghz CPU, 1080p video and 4x faster GPU - hopefully it won't be qsd8250 which is manufactured at 65nm but something newer at 45nm. Power efficiency is very important, besides those newer chips just like tegra should be able to shutdown unused parts to minimize power consumption.
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Click to collapse
It will be sick if they annouce the msm8xxx being required and that's why HD2 isn't supported. I'd take that trade off.
Wishmaster89 said:
And thats for qsd8250.
Newer generation of snapdragon(msm8xxx and dual core QSD8672) has 4x greater performance than the snapdragon1. Don't know how's msm7x30 graphics performance. Besides we don't know which snapdragon chip will be used in windows phones.
It could either be qsd8650a which is 30% faster than the one used in HD2 or it could be the new msm7x30 or it could even be the high end msm8xxx which supports 1,3Ghz CPU, 1080p video and 4x faster GPU - hopefully it won't be qsd8250 which is manufactured at 65nm but something newer at 45nm. Power efficiency is very important, besides those newer chips just like tegra should be able to shutdown unused parts to minimize power consumption.
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Click to collapse
Not all Snapdragon variants are actually intended to be used in phones. Most of the more powerful ones will only ever end up in netbooks and devices like that.
Wishmaster89 said:
Well MS clearly stated that qualcomm is first chip supplier for Windows Phones. Probably in the future they will allow tegra, omap and probably samsung chips too.
For now we are stuck with snapdragon which isn't that bad IMO.
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Click to collapse
The decision to exclude Samsung processors surprised me a bit. Samsung's "Hummingbird" CPU is easily the equal of the current generation Snapdragon, and Samsung has been a major supporter of Windows Mobile in the past. I guess MS wanted to limit itself to writing drivers for just one platform - allowing Samsung or OMAP processors would mean also allowing other GPUs, other GPS and Bluetooth hardware, etc.
Shasarak said:
The decision to exclude Samsung processors surprised me a bit. Samsung's "Hummingbird" CPU is easily the equal of the current generation Snapdragon, and Samsung has been a major supporter of Windows Mobile in the past. I guess MS wanted to limit itself to writing drivers for just one platform - allowing Samsung or OMAP processors would mean also allowing other GPUs, other GPS and Bluetooth hardware, etc.
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It's always sounded to me like they just picked one to launch with and will support others going forward. Writing drivers and testing other platforms at this point doesn't really give a good bang for the buck.
We should know on the 10th (the first GDC windows phone sessions). I would think the graphics capability would be something they would share there. But then again, they've shown an astounding ability to just say "wait for MIX" so far so they very well could keep that up.
Developing Games for Windows Phone 7 Series
Speaker: Michael Klucher
Time: 1:15-2:15pm
The future of Windows Phone has never looked better. With the release of Windows Phone 7 Series, game developers will be able to create amazing content rapidly. This talk outlines the basic framework for games, presents Windows Phone 7 Series device characteristics, and provides and overview of game development on the phone.
High Performance 3D Games on Windows Phone 7 Series
Speaker: Tomas Vykruta & Shawn Hargreaves
Time: 2:30-3:30pm
Windows Phone 7 Series is a highly capable platform for game development. This talk covers 3D game development on Windows Phone 7 Series with an emphasis on the unique characteristics of the platform. The talk also focuses on optimizing high-performance games for the platform, to help developers squeeze out every last drop of performance.
Development and Debugging Tools for Windows Phone 7 Series
Speaker: Cullen Waters
Time: 3:45pm-4:45pm
This talk discusses the basic tools available to game developers on Windows Phone 7 Series, including debugging, emulation, and performance tools. The talk places special emphasis on best practices for performance and profiling tools that can be used to optimize games for Windows Phone 7 Series.
Bringing the Best of Xbox LIVE to Windows Phone 7 Series
Speaker: Adam Schaeffer
Time: 5:00-6:00pm
The Xbox LIVE service is going mobile! With Windows Phone 7 Series, core features such as Achievements, Leaderboards, and game invites will be available to games on Windows Phone 7 Series devices. This talk covers the basics of the services available and how they can be used to enable core Xbox LIVE functionality in games. In addition, this talk will present best practices for connecting Windows Phone 7 Series games to back-end servers.
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I imagine that they want WP7 to be as smooth and hitch-free as possible to start out with. That means not allowing for any unknown variables such as different hardware, drivers, software.
It's the same for Iphone or any of the console game machines. It's one piece of hardware that is always the same making it easier to plan things for and develop things for. Which ends up meaning a higher perception of quality from the consumers due to lack of glitches and crashes.
Hence Apple's commercials saying how often PCs crash and stuff. They crash because PCs have way more variables as far as hardware and drivers than Macs have making many more incompatibilities.
Microsoft will probably allow other hardware once WP7 has a good name going in the consumers eyes.
Shasarak said:
Not all Snapdragon variants are actually intended to be used in phones. Most of the more powerful ones will only ever end up in netbooks and devices like that.
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Click to collapse
You're right. QSD8672 is targeted at smartbooks but msm8xxx is designed to power both smarphones and smartbooks. Besides OMAP4 and tegra2 are powerful but still we can expect smartphones based on those platforms next year.
The decision to exclude Samsung processors surprised me a bit. Samsung's "Hummingbird" CPU is easily the equal of the current generation Snapdragon, and Samsung has been a major supporter of Windows Mobile in the past. I guess MS wanted to limit itself to writing drivers for just one platform - allowing Samsung or OMAP processors would mean also allowing other GPUs, other GPS and Bluetooth hardware, etc.
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Click to collapse
I think so too. More hardware platforms mean more work to do. So I think that support for other hardware platforms will come after they'll finish V1 of WP7 - this way they will just have to port complete full OS from snapdragon to other platform.
Shasarak said:
What?! No, I said Snapdragon includes a perfectly reasonable graphics chip. How on Earth did you interpret that as meaning the exact opposite of what I said???
Snapdragon is not just a CPU. Snapdragon is a chipset, an entire mobile phone platform that consists of several separate chips. One of them is the CPU. Another of them is a graphics chip (or, if you prefer to phrase it that way, a "dedicated graphics processor") made by ATI/AMD. Honestly, have you never seen the Electopia demo running on a Snapdragon phone? The graphics are really quite impressive.
Yes, the Snapdragon GPU is somewhat less powerful than the one in the iPhone 3GS, but it's not an order of magnitude difference, and the faster CPU in Snapdragon (coupled with improved NEON instructions) somewhat compensates. Certainly the Snapdragon GPU is way more powerful than the one included with MSM72xx, and even that can run Xtrakt quite happily; it's miles ahead of the one in the iPhone 3G, too.
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Click to collapse
my bad. I thought snapdragon is a processor.
I don't know very much about the development end as far as porting an OS from one device to another but I was wondering if it was possible to port WP7 to the Samsung Epic 4g. I know the new Samsung Focus has it as its OS so I assumed being that they are Samsung products that there might be a possibility of getting WP7 on the Epic but I have no idea. Does anyone know if its possible and if anyone is working on it?
No.
WP7 requires either a Qualcomm QSD8250 (GSM) or QSD8650 (CDMA) - there may also be other hardware requirements
Even if the hardware requirements were there if anyone started working on porting this over they would quickly get a cease and desist order for Microsofts legal team. WP7 is not free and definitely not open source. Never going to happen. If you want a phone with WP7, buy a phone with WP7.
TehPenguin said:
No.
WP7 requires either a Qualcomm QSD8250 (GSM) or QSD8650 (CDMA) - there may also be other hardware requirements
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Not true...WP7 doesn't require a Qualcomm processor. The requirements for WP7 were but not limited to the Qualcomm 8200 and 8600 series.
If what you say is true, no further advancements in processors could be made to be used with WP7.
I remember reading the requirements for WP7...it was not limited to those 2 types of processors by far. And the Hummingbird processor may even be included in the supported processors list.
EDIT: In this stickied thread in this specific forum: http://forum.xda-developers.com/showthread.php?t=649909
It states and I quote, "ARMv7 based applications processor (compare this to ARMv4 for WinMo 6.x)"
The Hummingbird Processor installed in the Samsung Epic, and all of the Galaxy S Devices, is a ARMv7 based processor
Please post questions like these in the General Section!
~~Tito~~
Hi everyone,
Theoretically, I was just wondering the Galaxy Note II would be more better in both battery efficient and boost in CPU performance if it was using the Quad core snapdragon (krait) than to the Quad core (A9) exynos.
I was wondering why Samsung Company chose their own chips (A9) instead of a more advance chips (Krait).
Is it because Quad core Snapdragon chips are low in supply due to high demands from other rival smartphone manufacturers?
its sad to know they are not releasing a Snapdragon Quad core variant for their new flagship phablet.
Initially, i was disappointed that the US variant of Galaxy S III has a dual core Snapdragon chips (Krait) compare to the international version of a Quadcore Exynos (A9) chips, but now I'm disappointed that they are not releasing a Quad core Snapdragon chips (Krait) variant of Galaxy Note II.
what are your thoughts, guys.
Never ever liked the snapdragon processors... why? Cause after a long term use they slowly die down like a kid running for 15 minutes straight slowly slows down during the process then eventually cant take it anymore and just quit
I'm a consultant... ask me anything... I'll run away.
phreshjoker said:
Never ever liked the snapdragon processors... why? Cause after a long term use they slowly die down like a kid running for 15 minutes straight slowly slows down during the process then eventually cant take it anymore and just quit
I'm a consultant... ask me anything... I'll run away.
Click to expand...
Click to collapse
pls share your website source that supports your answer that snapdragon slows downs
The galaxy tab s products that are available to me have an octa-core processor, with the high speed cores being 1.9ghz. I can't really understand why Samsung chose to use that instead of a 2.3ghz quad-core like in the tab pro.
See Wikipedia for an explanation of the concept: http://en.m.wikipedia.org/wiki/ARM_...multi-processing_.28global_task_scheduling.29
Because the Exynos 5 Octa-core is the one processor that Samsung has to be able to compete with Snapdragon 800, and is cheaper to implement since it's their own processor. I don't buy the Octa-core hype, I'd be happier with the Snapdragon 800 honestly like on the Tab PRO 8.4.
The question is:
Does TAB S use the 8 cores at the same time?
It seams it does NOT, little cores are only used when low power is required..
So performance wise, this CPU is slower than SD 800
ssuper2k said:
The question is:
Does TAB S use the 8 cores at the same time?
It seams it does NOT, little cores are only used when low power is required..
So performance wise, this CPU is slower than SD 800
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Click to collapse
And yet I am getting 35,300 on Antutu using Shaheers t800 rom which is higher than any other current tablet or phone. (Shaheer's rom should go out of beta today - don't flash until final has been posted).
The Tab Pro 8.4 Antutu is 32,806.
I CANT PLAY NOVA 3 with exynos !
AND GAMING IS NOT SO SMOOTH ! STILL A BIT LAGGY
I can see the argument that you don't always need full power, thus the four slow cores, but since all cores can't run at once, it seems a cheat to have 1.9ghz as the top speed for the faster four cores. Since, or at least I assume, cores step up and down as needed, it seems to me a snapdragon 800 or higher at 2.3ghz or higher would have been just fine. I mean, if you are going to put in 3gb of RAM, then you should put in a great cpu also and not pretend less (1.9ghz) is a better contribution to what is supposed to be a premium tablet.
And yet I don't think samsung is doing enough to utilizing this hardware capability. In theory it should run at least 4x faster and 6x more effecient then the snap dragon and apple current A8 chip. It has failed to outshine the competitors because samsung software department sucks. Samsung hardware is still great though.
sku|| said:
I CANT PLAY NOVA 3 with exynos !
AND GAMING IS NOT SO SMOOTH ! STILL A BIT LAGGY
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Blame the developer for not making it compatible. Tegra powered Htc one x is incompatible too so not sure that is exynos issue..
i wish my t805 had Full HD screen resolution :cyclops:
Funny. Was just browsing the web a bit on my i5 ultrabook and it occurred to me that the browser on my Tab S is actually faster. If gaming is your primary thing, I'd buy the Nvidia Shield, not the Tab S. This tablet is designed for eye candy media consumption (internet and video) not for gaming enthusiasts. Try running your PC video card at 2560 x 1600 on ultra and see what you get.
i had heard from a Samsung rep i actually enjoy talking to that Sammy had just figured the all cores at once and we should see updates that turn that feature on. when this will happen who knows. i also did not ask him for a link and now cant find that info on the web so when i see him again soon i will get more info.
i would assume (insert you know what that means) that when/if this happens the full power of this setup would greatly improve?
anyway i have had my Tab S running snappy for me and no complaints at this time
You cannot compare the clock speeds from two different processors. For instance, you can't compare the 1.9GHz quad-core of the Exynos to the 2.3GHz quad-core of the Snapdragon 800. This doesn't mean anything. If you compare the clock speed of two Snapdragon chips, that's ok, or if you compare the clock speed of two Exynos chips, then that's ok too. Comparing the clock speed of an Intel chip against the clock speed of an AMD chip, is the same as comparing the clock speed of an Exynos chip to the clock speed of a Snapdragon chip.
The Exynos chip in this tablet has been shown to compete very well/close with the Snapdragon on every level except GPU. The Mali GPU in this chip just doesn't match the Adreno GPU from the Snapdragon. However, the RAM is faster in the Exynos than the Snapdragon.
That said, I am a fan of the Snapdragon chip, of course. I was holding off to see if the LTE variant of this tablet would have the Snapdragon 800, but instead they shipped with an Intel LTE modem. Besides apps/games not being optimized for Exynos, I am fairly satisfied with my purchase. I'm just anxious to get CyanogenMod(or any other AOSP ROM installed on it).
fletch33 said:
i had heard from a Samsung rep i actually enjoy talking to that Sammy had just figured the all cores at once and we should see updates that turn that feature on. when this will happen who knows. i also did not ask him for a link and now cant find that info on the web so when i see him again soon i will get more info.
i would assume (insert you know what that means) that when/if this happens the full power of this setup would greatly improve?
anyway i have had my Tab S running snappy for me and no complaints at this time
Click to expand...
Click to collapse
Could also mean increased battery consumption,don't know. Overall I am satisfied with this Tab including battery life.
There are 3 different performace results:
a) what Exynos 520 does achieve in practice now, measured bei some benchmarks and real world performance (<= Snapdragon 800)
b) what it could do theoretically - but will never happen due to driver and scheduler etc issues (>> Snapdragon)
c) what it will do some day in near future on an optimized ROM (somewhere in between?)
Fortunately the Exynos 5420 does support all 8 cores in parallel, see here:
http://www.notebookcheck.net/Samsung-Exynos-5420-Octa-SoC.103633.0.html
pibach said:
There are 3 different performace results:
a) what Exynos 520 does achieve in practice now, measured bei some benchmarks and real world performance (<= Snapdragon 800)
b) what it could do theoretically - but will never happen due to driver and scheduler etc issues (>> Snapdragon)
c) what it will do some day in near future on an optimized ROM (somewhere in between?)
Fortunately the Exynos 5420 does support all 8 cores in parallel, see here:
http://www.notebookcheck.net/Samsung-Exynos-5420-Octa-SoC.103633.0.html
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Wish I knew how. Probably a linux thing. ...
If it is possible to implement in today's existing source, I'm sure @AndreiLux would know about it ?
UpInTheAir said:
Wish I knew how. Probably a linux thing. ...
If it is possible to implement in today's existing source, I'm sure @AndreiLux would know about it ?
Click to expand...
Click to collapse
It's impossible.
AndreiLux said:
It's impossible.
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Click to collapse
What and why?
pibach said:
What and why?
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Click to collapse
http://www.androidauthority.com/sam...ta-can-use-eight-cores-simultaneously-267316/
I've found a few articles saying it should support it, then a couple Deva saying they had to goto the 5422 for a working implementation of HMP.
Here is a post from odroid
http://forum.odroid.com/viewtopic.php?f=97&t=5651
That's weird. The (newer) 5422 supports HMP but not 3gb RAM.
I just read some articles that 5420 may enable 8 core processor by soft update. Is it true?
Sent from my Galaxy Note 2
Alexsandra said:
I just read some articles that 5420 may enable 8 core processor by soft update. Is it true?
Sent from my Galaxy Note 2
Click to expand...
Click to collapse
they're already enabled. next.
Jodova: if you don't understand the question then don't answer and display your ignorance. He's asking about enabling all right at the same time, not the big.Little configuration they're in now.
Hopefully Samsung will enable this soon.
Sent from my GT-N7000 using Tapatalk 2
I can't imagine needing all 8 cores at the same time. It seems it works great under heavy loads as is.
Forgive my ignorance but, would we really benefit? It seems to me it would absolutely destroy the battery.
Is there any octa-core device running all 8 cores out of the box?
LoVeRice said:
Is there any octa-core device running all 8 cores out of the box?
Click to expand...
Click to collapse
I attached a image for your question. It looks like Galaxy S5 should support enable 8 core. I think Little Big is designed for beautiful scoring not for daily usage.:banghead: I prefer to choose the latest Snapdragon Chip
Sent from my Galaxy Note 2
Brenardo said:
I can't imagine needing all 8 cores at the same time. It seems it works great under heavy loads as is.
Forgive my ignorance but, would we really benefit? It seems to me it would absolutely destroy the battery.
Click to expand...
Click to collapse
I expect my next Tab or tablet could have enough powerful processor which is able to make me forget my windows laptop. Battery killer? Samsung ROM is the best battery killer
Sent from my Galaxy Note 2
Zamboney said:
Jodova: if you don't understand the question then don't answer and display your ignorance. He's asking about enabling all right at the same time, not the big.Little configuration they're in now.
Hopefully Samsung will enable this soon.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
I am waiting for update or Sony Z2 tablet is my alternative option
Sent from my Galaxy Note 2
Exynos 5420 + HMP = Exynos 5422. So no, Exynos 5420 which is in the S doesn't (and won't) support HMP.
BarryH_GEG said:
Exynos 5420 + HMP = Exynos 5422. So no, Exynos 5420 which is in the S doesn't (and won't) support HMP.
Click to expand...
Click to collapse
:banghead::banghead:
Sent from my Galaxy Note 2
Here's a slide from Qualcomm. The same holds true with Exynos where 85% of apps never leave the A7 cluster. In a few instances using A7 and A15 at the same time might provide needed extra power but how many apps or games exceed the power provided by four A15 chips?
Check out this:
http://www.slashgear.com/samsung-te...lementation-for-exynos-ahead-of-ces-29310253/
In this article. from Dec 2013 , more than 6 months before the tab S was released, a "Samsung Engineer" is quoted as saying:
'The ARM-based Exynos 5 Octa is currently used in a range of Samsung tablets and smartphones, but only one Exynos model, the 5420, is hardware-enabled for HMP. The 5420 is currently found in the Galaxy Note 3 and Galaxy Note 10.1. However, HMP is currently software-disabled because HMP would overheat such devices, a Samsung engineer stated.'
Samsung announced two new mobile SoCs at MWC today. The first is an update to the Exynos 5 Octa with the new Exynos 5422. The 5422 is a mild update to the 5420, which was found in some international variants of the Galaxy Note 3. The new SoC is still built on a 28nm process at Samsung, but enjoys much higher frequencies on both the Cortex A7 and A15 clusters. The two clusters can run their cores at up to 1.5GHz and 2.1GHz, respectively. The 5422 supports HMP (Heterogeneous Multi-Processing), and Samsung LSI tells us that unlike the 5420 we may actually see this one used with HMP enabled. HMP refers to the ability for the OS to use and schedule threads on all 8 cores at the same time, putting those threads with low performance requirements on the little cores and high performance threads on the big cores.
The GPU is still the same ARM Mali-T628 MP6 from the 5420, running at the same frequency. Samsung does expect the 5422 to ship with updated software (drivers perhaps?) that will improve GPU performance over the 5420.http://www.anandtech.com/show/7811/samsungs-exynos-5422-the-ideal-biglittle-exynos-5-hexa-5260
The Exynos 5422 in the SGS5 is running at the same clock speed as the 5420 vs. the higher speeds it's capable of supporting. So it's highly likely 5420 and 5422 have the same heat envelope.
@AndreiLux is a leading kernel developer on XDA. You can review his comments on 5420 ever being able to support HMP in this thread. I'd take it as gospel. Getting HMP working where it's disabled is kind of like threads about reversing KNOX after it's tripped. Both are urban myths.
http://forum.xda-developers.com/showthread.php?t=2645875
It's not impossible for the 5420, it's been done and I've seen the Samsung patch (I linked the patch in another thread in our forum somewhere). As far as I'm aware, it just hasn't been done on Android. It may require many changes including Linux version, governor etc etc
I personally (just guessing) think that Samsung haven't bothered for our device because of heating issues and invoking thermal throttling at an earlier stage. For most applications, such power would not be needed.
Edit: OK, the patch I quoted was for 5410, but I've seen similar for 5420. ...
This is the thread in I'm referring to previous discussion.
http://forum.xda-developers.com/showthread.php?p=54700335
If Samsung invested the time money and resources, I'm quite sure that is not "impossible" to do it for our device. Due to the above stated reasons, I feel it's quite "improbable".
UpInTheAir said:
It's not impossible for the 5420, it's been done and I've seen the Samsung patch (I linked the patch in another thread in our forum somewhere). As far as I'm aware, it just hasn't been done on Android. It may require many changes including Linux version, governor etc etc
I personally (just guessing) think that Samsung haven't bothered for our device because of heating issues and invoking thermal throttling at an earlier stage. For most applications, such power would not be needed.
Edit: OK, the patch I quoted was for 5410, but I've seen similar for 5420. ...
This is the thread in I'm referring to previous discussion.
http://forum.xda-developers.com/showthread.php?p=54700335
If Samsung invested the time money and resources, I'm quite sure that is not "impossible" to do it for our device. Due to the above stated reasons, I feel it's quite "improbable".
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Click to collapse
That patch in that previous discussion won't work, and neither will any for the 5420 due to various reasons I already explained in the past.
AndreiLux said:
That patch in that previous discussion won't work, and neither will any for the 5420 due to various reasons I already explained in the past.
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I never implied that that specific patch will work, just an example of what's "possible".
Here is a link on a working 5420 HMP in a Samsung demo:
https://www.google.co.th/url?sa=t&...wIwAA&usg=AFQjCNE0QItCM5_UdrpSajCtUSJ3Dt3WBw
As i maintain , possible, but improbable. ...
UpInTheAir said:
As i maintain , possible, but improbable. ...
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And I maintain that it is not possible.
AndreiLux said:
And I maintain that it is not possible.
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The video isn't shot by David Copperfield . ...... This is clear evidence, not hearsay. Not "impossible", because it's actually been done
UpInTheAir said:
The video isn't shot by David Copperfield . ...... This is clear evidence, not hearsay. Not "impossible", because it's actually been done
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Do you really want to argue with me? The CCI is disabled in hardware on the SoC and it's impossible in any kind of way to circumvent this via software. Beyond that we need changes to the bootloader to be able to properly manage booting of the clusters as the PM is protected/handled over TrustZone.
You will never see HMP work on any 5420 on any publicly available hardware. Period.
AndreiLux said:
Do you really want to argue with me? The CCI is disabled in hardware on the SoC and it's impossible in any kind of way to circumvent this via software. Beyond that we need changes to the bootloader to be able to properly manage booting of the clusters as the PM is protected/handled over TrustZone.
You will never see HMP work on any 5420 on any publicly available hardware. Period.
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You know that i wasnt arguing...... My point was that's is not impossible (video evidence !!), but improbable. Samsung have the resources to do just about anything they put there minds, money and motivation too. I also referred to generally 5420 , and not our specific device......
I agree on your last statement (edit: for existing public available hardware), The demo 5420 HMP clearly works.