I'll go tomorrow to buy a HTC HD2. But it comes with a 2Gb microSD card that is too small for me.
I would like to buy a 8 GB or 16 GB memory card, only for the phone. Does the class really matters? I've searched and searched again, but I didn't find a good answer. It is a class 2 enough or i should go for a class 4 or class 6?
Price is also important.
What's that phrase people are always spouting off? Get the biggest/fastest that you can afford? The higher the class the faster (theoretically) the data transfer. If you look around you can get an 8GB Class 6 for about $23.
Is not so simple. A 6 class 8GB card or a class 2 16 GB card(same price)? And Ive read that it dose not matters so much the class, but i asked here for a confirmation.
I just read an article about that
It seems that the class you are talking about only applies to the writing speed it doesn't say anything about read speeds.
and since writing speed isn't that important for a smartphone you can get a class 2 because writing speeds are similar most of the time.
I got the following numbers of a dutch website tweakers.net:
here are some numbers:
The Nokia 16GB microSDHC
Class 2x
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Transcent 16GB MicroSDHC
class 6x:
Sequential Read : 14.758 MB/s
Sequential Write : 7.860 MB/s
Random Read 512KB : 14.741 MB/s
Random Write 512KB : 2.026 MB/s
Random Read 4KB : 4.506 MB/s
Random Write 4KB : 0.023 MB/s
Here is a comparison of the Nokia against the Transcent micro sdhc so you see that the nokia is:
Sequential Read : 36,11% faster
Sequential Write : 16,46% slower
Random Read 512KB : 35,20% faster
Random Write 512KB : 96,89% slower
Random Read 4KB : 18,83% slower
Random Write 4KB : 21,05% slower
So out of these benchmarks you can conclude that the higher class cards only give you better writing speeds. And the important speeds are the reading speeds on a smartphone.
I hope this helps you a bit
hy, in my knowledge HC classes are invented for DSLR cameras, because they need to be able to take 4,6 10 pics /sec, (technically write on the card big amount of data (2-3Mb even more in RAW) in seconds, for smartphones it's ok a HC 2
by the way I have a 4GB SDHC2 and it's set to recognize as a HC1 (do no why but it's faster)
hope it helped
Related
This: http://datacomp.sk/kingston-micro-sdhc-16gb-class-4-adapter_d82251.html
Or this: http://online.asbis.sk/16-gb-microsdhc-karta-a-data-class-10-adapter-v3_d138300.html
Kingston was always a reliable card. I had it with my previous phones.
But A-Data is better specs wise and it is reliable, too. Class 10 will be faster than class 4 and A-Data is reported to be one of the class 10 cards working flawlessly with the Desire.
I'd go with the A-Data.
davebugyi said:
Kingston was always a reliable card. I had it with my previous phones.
But A-Data is better specs wise and it is reliable, too. Class 10 will be faster than class 4 and A-Data is reported to be one of the class 10 cards working flawlessly with the Desire.
I'd go with the A-Data.
Click to expand...
Click to collapse
I can join this opinion.
SwiftKeyed from Oxygen with Transparent XDA App
Both are reputable memory manufacturers so I'd go with the more favorable price/warranty ratio.
Well, this is interesting behavior. I transcoded all Ambient Nights from 320 kBps MP3 into 192 kBps aacPlus. The moment I copied them onto SD card, performance of entire phone went to hell. Any idea why?
Just for your info, this is my ADATA 8Gb class 10 result, on Stock rooted Gingerbread..
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I just checked card for bad sectors. None.
JACKOPT! File name format was causing slowdown. When I changed it to 01. artist - track all is working again. Now, since I have hundreds of tracks to rename, do you know good freeware software that we will do it?
I think Media monkey could pull that off.
I would prefer Partiot:
pamatove-karty.heureka.sk/patriot-micro-sdhc-16gb-class-10/
I am currently happy with Lexar
www .sunnysoft.sk/zbozi/150PLX-027/lexar-microsdhc-32gb-pametova-karta-high-speed-class-10-se-cteckou.html
Previous one was Transcend 8 GB class 6. No problems with that either. Quite fast. Even comparing to the latest Class 10 card.
You should also remember a nice company Sandisk. Their class 2 cards are faster than any class 10 cards for small files. And I have a reason to believe that it would speed up custom ROMs from sd-ext a lot.
I bought this one: http://www.qcomp.sk/shopping/product_details.php?idp=abC4310711
Anyway, I used Rename Master.
Great price.
And I had to pay for mine class six one five euros more... congratulations to your choice, anyway.
Touchpaled from Oxygen with Transparent XDA App
Well, it wasn't because of file name. The only reason I can think of is audio format. I'll see more tomorrow. Wish me luck.
P.S.: I can't get more than 5 MBps from card while in phone. But the card itself is workin as should; I get speeds between 10 MBps to 12 MBps.
Yep, it was file format. Now I'm back to business.
Question: Desire doesn't have SD specification v3.0?
A-DATA 16GB SDHC Class 10, stock GB ROM
As for poll: Use more answers if you have more than 1 SD card, regardless if you're using it in Desire or not.
http://i1231.photobucket.com/albums/ee518/timmaaa/htchtcdesire2011-08-2417-15-51.png
Sent from my CM7.1 Desire using XDA Premium App
Class 4?
10char
About ~5.2MB/s write and ~29.3MB/s read. Used SD Tools.
I used CrystalMark yesterday and my read speeds were crap thanks to limitations.
What limitations?
Yeah class 4
Sent from my CM7.1 Desire using XDA Premium App
I tried formatting card with Desire. Never again. Writing speed went from 13 MBps to 5 MBps.
Class 4 16GB Sandisk.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Use CrystalMark, because those speed are irrelevant for custom ROMs. Speeds that are important are with 4K files.
what allocation size , i find with 32 k on my 16gb sandisk class 4 writing speed is higher than read with 32k allocation using sd tools test on phone
With A-DATA 16 GB Class: ~ 7,7 MB/s write and ~ 19,5 MB/s read.
16GB Class 10
kingston 16gb class 4
Patriot 16GB, Class 10
Sandisk 8gb Class 2
GingerVillain 2.8 + SD Booster
View attachment 707010
The last result is really interesting. I have a 4 GB class 2 SDHC card from Sandisk and i get 9 MB/s write speed and 24 MB/s read speed; tested on my PC with the built-in card reader. I have tested two other SDHC cards, both Sandisk, one class 4 one class 6, with the same PC & reader, and they don't go over 5 MB/s (write speed) under the same testing conditions - copying a 700 MB file from the PC to the SD. Weird or what?
P.S. - All cards were fromatted under Windows 7, default allocation size.
@TVTV
I know, it's weird. Surely with a class 2 card I shouldn't be getting those kind of results???
using SD Tools,
Card: Lexar 32GB Class 10
write: 7.9MB/s
read: 25.0 MB/s
I haven't used any SD ROM Tweaks... not sure what AceMod007 uses by default.
Lexar 16gb class 6: write-7.4, read -27.7
Sent from my HTC Desire
This is my sandisk 8GB Class 4..
not bad...
I'm wanting to get a new memory card, preferably 32gb but I'm unsure which company to go for.
So it'll be helpful if you could benchmark your own memory cards with SDTools and also include class and manufacturer ( I find that different benchmark apps produce different results)
Without SD-Booster (Which btw is very effective)
Currently mine is a Samsung 16GB Micro SDHC Card - Class 10
Write : 12.3MB/s
Read : 21.5MB/s
Was messing around with the SD-Booster, and my read speed now is 28.5MB/s at 4096kb cache
SevenD2 said:
Even though in the OP I state don't use SD-Booster I've found out that different ROMS use different default Caches
Click to expand...
Click to collapse
Use Cache 1024mb for fair testing
SevenD2 said:
I'm wanting to get a new memory card, preferably 32gb but I'm unsure which company to go for.
So it'll be helpful if you could benchmark your own memory cards with SDTools and also include class and manufacturer ( I find that different benchmark apps produce different results)
Without SD-Booster (Which btw is very effective)
Currently mine is a Samsung 16GB Micro SDHC Card - Class 10
Write : 12.3MB/s
Read : 21.5MB/s
Click to expand...
Click to collapse
I am running with a Samsung 32GB Micro SCHC Card - Class 10
the benchmark would be like the 16GB you have. with SD-Speed Increase it is even a little better (I think, haven't tested it). I can recommend the 32GB Class 10, so far great speed and no complaints =)
Patriot 32GB Class 10:
Write: 8-10MB/s according to the app, when I copy stuff from my pc to the phone it goes to 13.7MB/s or even more with big files
Read: 16-28MB/s according to thr app
But there are ~27.5GB data on it which might slow things down a bit
Sent from my iPad 2 using Tapatalk
Here are the results of my 2-year-old SD Card, a Transcend 8GB Class 6:
Write: 8.2 MB/s
Read: 17 MB/s
I am very pleased with it. My next one though will be this one, the 32GB one:
http://www.sandisk.com/products/mob...crosdhc-and-microsdxc-uhs-i-cards-for-android
Transcend 16GB class 4 (2011)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
mustang 32 gb clas 10
write: 13MB/S
read:17.4 MB/S
Kingston 16gb class 10
7,8mb/s write
21,9mb/s read
Enviado desde mi LT18i usando Tapatalk 2
Trandscend 32GB class 10
W = around 10, sometimes 9, sometimes 11
R = minimal 20, sometimes can 28
Samsung Plus Extreme 8GB Class 10
Write 11.2MB/s
Read 18.8MB/s
Samsung Mobile Ultra 16GB
Write: 13.7
Read: 27.5
3072 cache size
Verbatim 16GB Class10. SD-Booster cache set to 8192
Samsung 32 GB Class 10
Write 9,2MB/s
Read 27,5 MB/s
SD-Booster at 2048
Samsung class 2 16GB
Read: 8 MB/s
Write: 20 MB/s
PS: Without SD Booster
Sandisk Ultra Mobile class 10 32gb
SD-Booster at 4096
Even though in the OP I state don't use SD-Booster I've found out that different ROMS use different default Caches
Se arc s stock 4.0.4
Transcend Class 4 32GB
Arc with stock sd card 8 GB class 4
writing
8.6 MB/s
Reading
13.7 MB/s
on cache of 256 kb ..
any body help me where to buy class 10 sd card in india?
SanDisk Ultra microSDHC/microSDXC UHS-I Class 10
Write = 14,3 Mb/s
Read = 21,1 Mb/s
Hmm Quite Good
Strontium 16GB Class 10
Can some run the A1 sd bench and tell me how fast is the internal storage is?
Gitaroo said:
Can some run the A1 sd bench and tell me how fast is the internal storage is?
Click to expand...
Click to collapse
Read = 234.13 mb/s
Write : 85.90 mb/s
Thanks, thats pretty good consider my z1 was like 50MB/s read and 6MB/s write.
ibis69 said:
Read = 234.13 mb/s
Write : 85.90 mb/s
Click to expand...
Click to collapse
Can u test RAM copy speed also?
Gitaroo said:
Thanks, thats pretty good consider my z1 was like 50MB/s read and 6MB/s write.
Click to expand...
Click to collapse
Really? My old Z does 56/22 r/w MB/s
langeveld024 said:
Can u test RAM copy speed also?
Click to expand...
Click to collapse
Ram copy : 5411,64 mb/s
ibis69 said:
Ram copy : 5411,64 mb/s
Click to expand...
Click to collapse
Very nice, thanks!
I got my Sony Xperia Z5 Premium Chrome on Friday
Got also a SanDisk Ultra 200GB, using A1 SD Bench I got a Read of 32.26MB/s and Write 15.04MB/s.
Also tested my SanDisk Extreme Pro 64GB got a
Read of 34.51MB/s and Write 31.10MB/s
Screenshots will be added
SocketMix said:
I got my Sony Xperia Z5 Premium Chrome on Friday
Got also a SanDisk Ultra 200GB, using A1 SD Bench I got a Read of 32.26MB/s and Write 15.04MB/s.
Also tested my SanDisk Extreme Pro 64GB got a
Read of 34.51MB/s and Write 31.10MB/s
Screenshots will be added
Click to expand...
Click to collapse
those number are realistic for microsd I guess, but I expect read speed to be a bit higher.
Yes that's real life
Via usb 3 adapter to pc they'll both hit 80 to 95 Mb/s read and write speed.
Think it's enough also my phone has minimal apps
I am more surprise that my Z1 is 5mb write, thats like awfully slow, but I check some of the benchmark ppl posted, Galaxy s4 is the same? Something not right here.
I have z2 ram copy speed is 6400 mb/s internal memory r:70 w:25 mb/s
Sent from my D6503 using XDA Free mobile app
Z5 Premium Ram copy speed is 4595.56 MB/s
Internal Memory Read 228.24 MB/s Write 128.43 MB/s
Images
1.choices
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
2. 200gb Ultra SanDisk test
3.64GB xtreme pro SanDisk test
Normally when I post reviews on XDA Developers, I rewrite them to be more for this audience. However, when I'm reviewing SD Cards, pretty much only the facts are interesting, so I've just gone verbatim here since I think it's to the point.
I picked up this MicroSD card (more specifically, MicroSDXC) and promptly ran some tests with it, you can see them in the video, but here are some key facts:
* On a USB3.0 reader I was getting 78.64 MB/S read and 18.45 MB/S write for Sequential writes using a 100MiB test file. The card is actually exceeding its own claims here
* The same test on the USB3.0 reader with a 1GiB test file gave 77.81 MB/S read and 19.92 MB/S write for Sequential writes.
* On a USB2.0 reader I was getting 22.02 MB/S read and 10.70 MB/S write for Sequential writes using a 100MiB test file. The lower speed is to be expected due to a USB2.0 reader.
* It arrived formatted as exFAT
* It worked just fine in the LG G4. 117gb formatted capacity shown.
Included was a microSD to full size SD adapter which worked just fine in my laptop for the USB2.0 test.
Conclusion
So there you go, I like the Silicon Power 128gb microSD card and it's working just fine in my LG G4. Simple conclusion I know, but I think the best I can do here is not beat around the bush.
Notes
The tested model number was SP128GBSTXBU1V20SP
Photos
Album (has a few more images and a USB2 test)
Box:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
In a USB3 reader, 100MiB Test:
In a USB3 reader, 1GiB Test:
Video Review
Links
NCIX.ca (where I bought it): Silicon Power Elite 128GB Microsdxc UHS-1 Class 10 75MB/S Memory Card With Adapter
Amazon.ca: Silicon Power 128GB up to 75MB/s MicroSDXC UHS-1 Class 10, Elite Flash Memory Card with Adaptor (SP128GBSTXBU1V20SP)
I also picked one of these up (on an Amazon lightning deal, no less - $30 instead of $35). I've had no issues and been entirely happy with it. I reformatted mine to FAT32 with gparted and am using it in my Samsung Galaxy Tab S2. My benches were pretty close to yours.
I'd definitely recommend this card [emoji4]