Hello,
I read lots of articles about how the Tegra 3 only scores well in benchmarks because of its 4 cores, which are overkill in almost all real world scenarios. So I was interested to find out how the the Tegra 3 would do if you made it a Dual Core, like the S4.
I ran Antutu three times, running stock everything (except root), and the lowest I got was 7114.
I know it is not very reliable to use one benchmark, but in my opinion, neither is using quadrant which is made by Qualcomm.
I find it interesting to see that the Tegra 3 scores considerably more than the S4, even with the same number of cores.
What are your thoughts? What do you think caused this? What does it mean?
Unable to upload screenshot:
Ram - 1202
CPU Integer - 2004
CPU Float - 1550
2D - 295
3D - 1242
Database - 475
SD Read - 150
SD Write - 196
not too sure why it would still win hands down *shrugs*
How does the real world speed with 2 cores disabled though?
And does it seem to save any battery if you've had it going for a while.
I've had it set to two cores only for a few days. It makes NO difference to anything but benchmark scores (even antutu still shows 60 FPS in the graphics tests). Games like Dark Meadow THD run exactly the same as before.
I'm not too sure how it has affected the battery life as I installed a mod that lowers the auto brightness at the same time. All I can say is the combination of the two has dramatically increased the life of the battery
So the GPU is bottleneck (surprise)
Which GPU are you referring it?
maybe the benchmark tests are yet to be fully optimised for 4 cores?
ORStoner said:
Hello,
I read lots of articles about how the Tegra 3 only scores well in benchmarks because of its 4 cores, which are overkill in almost all real world scenarios. So I was interested to find out how the the Tegra 3 would do if you made it a Dual Core, like the S4.
I ran Antutu three times, running stock everything (except root), and the lowest I got was 7114.
I know it is not very reliable to use one benchmark, but in my opinion, neither is using quadrant which is made by Qualcomm.
I find it interesting to see that the Tegra 3 scores considerably more than the S4, even with the same number of cores.
What are your thoughts? What do you think caused this? What does it mean?
Unable to upload screenshot:
Ram - 1202
CPU Integer - 2004
CPU Float - 1550
2D - 295
3D - 1242
Database - 475
SD Read - 150
SD Write - 196
Click to expand...
Click to collapse
My guess is the reason the Tegra 3 with 2 cores running scores lower than the Snapdragon S4 is because the Tegra 3 has 4 A9 cores, whereas the Snapdragon has 2 cores that are closer to the A15 architecture, which is a faster chip. A15 will be quicker than A9 if the same number of cores are being used in each chipset.
My One X scores around 11000 with four cores and, as you can see, 7114 with two cores. In just curious to know why with two cores it scores around 1000 more than the S4 version?
thegregulator said:
My guess is the reason the Tegra 3 with 2 cores running scores lower than the Snapdragon S4 is because the Tegra 3 has 4 A9 cores, whereas the Snapdragon has 2 cores that are closer to the A15 architecture, which is a faster chip. A15 will be quicker than A9 if the same number of cores are being used in each chipset.
Click to expand...
Click to collapse
I think you misunderstood, the Tegra with two A9 scored greater than the Snapdragon. If you were correct, I would not be as surprised as I am and would not have started this thread.
Out of curiosity what are you using to lock the 2 cores?
Wouldn't mind trying it out myself
Open root explorer.
Go to sys/kernel/debug/tegra_hotplug
Open max_cpus in text editor, change 4 to 2 or 3 (Single core does not work).
Open it again to check it has saved properly and it will go back to 4 the next time you reboot the phone.
You know Tegra 3 has 5 cores instead of 4 cores in the A9 architecture right? So you basically did the benchmark with 3 cores instead of 2.
Sent from my Incredible 2 using XDA
5th core is just a low clock speed / power to run idle tasks?
Doubt it would do much to a benchmark test.
Correct me if I'm wrong but the companion core can only be used on its own while the main processor is shut off. Even if it could 'assist' the main processor, it's only around 300mhz and would make very little difference to the score of a benchmark.
david_hume said:
You know Tegra 3 has 5 cores instead of 4 cores in the A9 architecture right? So you basically did the benchmark with 3 cores instead of 2.
Sent from my Incredible 2 using XDA
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Click to collapse
From what i know the 5th companion core is invisible to the system so 2 would be correct in the max_cpu edit.
I refer to my previous question which was why is the dual core tegra 3 doing BETTER than the dual core S4? Is it down to the GPU?
well that's revealing indeed, what's more interesting is how the included governors work
on-demand quad max 1400mhz conservative in jumping to max
interactive three cores only 1400mhz max jumps more often
performance three cores only locks at 1200mhz and jumps to 1400mhz on stress
glowball frame rate suffer badly when running less the 4 cores
you can see at default ondemand tegra3 is always juggling on 4 cores but rarely peaking to max clocks
While it indeed sucks as a useful tool, you should be aware that Quadrant is not a Qualcomm program...perhaps you're confusing it with the antiquated NeoCore benchmark. Vellamo is Qualcomm as well.
Sorry Vellano is Qualcomm not Quadrant. My mistake.
ORStoner said:
I refer to my previous question which was why is the dual core tegra 3 doing BETTER than the dual core S4? Is it down to the GPU?
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Click to collapse
If you are referring to the s4 in the htc one s then id like to know where you got your information indicating that the tegra is still faster in dual core when in quad the s4 still out performs it. The s4 scores over 12000 compared to 11500 that the tegra does and well over 7000 that it does in dual core mode....
The older a9 however found in older phones such as the sensation is another story with that chip scoring in about 6500
i am not sure how reliable cpu spy is but i doubt it is bullshitting me ;-)
so feel free to correct me if im wrong but the way tegra 3 works on this phone is as follow
1 core = 1.5 ghz
2 cores = 1.4 ghz each core
3 i will pressume 3 cores at 1.3 ghz..
when all cores are running, it is running at 1.2ghz x 4
according to my cpu spy info. the phone is mainly running on everything else but 1.2ghz(=quad core)
http://db.tt/syesXRs2
however i fail to see with us using a lot of dual core and hardly any quad core how our battery drains within less than 3 hours (at least from what i have seen at least)..or is the information i have about how tegra 3 runs is false?
shadehh said:
i am not sure how reliable cpu spy is but i doubt it is bullshitting me ;-)
so feel free to correct me if im wrong but the way tegra 3 works on this phone is as follow
1 core = 1.5 ghz
2 cores = 1.4 ghz each core
3 i will pressume 3 cores at 1.3 ghz..
when all cores are running, it is running at 1.2ghz x 4
according to my cpu spy info. the phone is mainly running on everything else but 1.2ghz(=quad core)
http://db.tt/syesXRs2
however i fail to see with us using a lot of dual core and hardly any quad core how our battery drains within less than 3 hours (at least from what i have seen at least)..or is the information i have about how tegra 3 runs is false?
Click to expand...
Click to collapse
As far as I know, it will only go to 1.4 GHz on multiple cores, even on 4 cores.
Is it safe to overclock the processor and GPU a bit? Asking this since this tablet's processor is simply an underclocked Snapdragon 600.
(If I do, I'll be using ElementalX)
I don't think it makes that much sense. The s4 pro is already fast and does everything (and I mean everything) 600s and 800s can (obviously not considering chipset-specific tasks that our devices are not capable of in any case). I own a n4, same exact SoC and clock speed, and overclocking can be done up to 1.75 GHz. Even if I were to overclock I'd avoid the GPU. In any case follow the instructions provided by your kernel dev, he surely knows best
When you install ElementalX, the installer will guide you.
I'd recommmend you to overclock the cpu to 1.7 GHz and the gpu to 450 MHz. With everything else, just stick to the default.
Bonerock said:
When you install ElementalX, the installer will guide you.
I'd recommmend you to overclock the cpu to 1.7 GHz and the gpu to 450 MHz. With everything else, just stick to the default.
Click to expand...
Click to collapse
I overclocked to 1.7 GHz and the GPU up to 491 MHz, but the performance improvement wasn't even notable and I got only 800 more points on AnTuTu and 3 or 4 more FPS on 3DMark
My note's exynos should have a 4 arm cortex-a15 @ 1.90 GHz & a 4 arm cortex-a7 @ 1.30 GHz but my cortex-a7 has somehow been overclocked to 1.90 GHz and the cluster switch between these two has stopped and because of this i think all the cores run at the same time and my tablet over heats and runs out of battery very quick . what should i do ? please help
Mehran M said:
My note's exynos should have a 4 arm cortex-a15 @ 1.90 GHz & a 4 arm cortex-a7 @ 1.30 GHz but my cortex-a7 has somehow been overclocked to 1.90 GHz and the cluster switch between these two has stopped and because of this i think all the cores run at the same time and my tablet over heats and runs out of battery very quick . what should i do ? please help
Click to expand...
Click to collapse
You must be the first man in the 'verse to run HMP (all cores together) on an exynos 5420 tablet
As for your problem you probably run all 4 A15 cores together at all times. This is called the performance governor and it's enough to overheat your tablet ... just change it back to interactive with whatever app the first change was made.
Stevethegreat said:
You must be the first man in the 'verse to run HMP (all cores together) on an exynos 5420 tablet
As for your problem you probably run all 4 A15 cores together at all times. This is called the performance governor and it's enough to overheat your tablet ... just change it back to interactive with whatever app the first change was made.
Click to expand...
Click to collapse
But it is on interactive
Hi, my g4 cpu frequency in lollipop is
A53 - 1.4 ghz
A57 - 1.8 ghz
But in marshmallow
A53 - 1.8 ghz
A57 - 1.4 ghz
Does anyone also experience that change in cpu frequency? Will this somehow help to prevent boot loop? Thanks