in case anyone wants to test out the transfer rates of there SD cards... found this very helpful and simple.
It's called: H2testw
http://translate.google.ca/translat...2&ct=result&prev=/search?q=H2testw&hl=en&sa=G
Just got a class 10 16GB for $50, tested out:
Writing speed: 13.8 MByte/s
Reading speed: 16.6 MByte/s
my Class 2 8GB (that came with the Eris):
Writing speed: 6.56 MByte/s
Reading speed: 17.4 MByte/s
This should make for writting to the sd card twice as fast, and hopefully more picture taking in less time.
Izeltokatl said:
in case anyone wants to test out the transfer rates of there SD cards... found this very helpful and simple.
It's called: H2testw
http://translate.google.ca/translat...2&ct=result&prev=/search?q=H2testw&hl=en&sa=G
Just got a class 10 16GB for $50, tested out:
Writing speed: 13.8 MByte/s
Reading speed: 16.6 MByte/s
my Class 2 8GB (that came with the Eris):
Writing speed: 6.56 MByte/s
Reading speed: 17.4 MByte/s
This should make for writting to the sd card twice as fast, and hopefully more picture taking in less time.
Click to expand...
Click to collapse
nice, i wanted to see something like this
Izeltokatl said:
in case anyone wants to test out the transfer rates of there SD cards... found this very helpful and simple.
It's called: H2testw
http://translate.google.ca/translat...2&ct=result&prev=/search?q=H2testw&hl=en&sa=G
Just got a class 10 16GB for $50, tested out:
Writing speed: 13.8 MByte/s
Reading speed: 16.6 MByte/s
my Class 2 8GB (that came with the Eris):
Writing speed: 6.56 MByte/s
Reading speed: 17.4 MByte/s
This should make for writting to the sd card twice as fast, and hopefully more picture taking in less time.
Click to expand...
Click to collapse
If you already know this, just ignore me, and I'm not trying to burst your bubble. I just wanted to add the information, for you or for anyone who reads this, that the Eris is probably only made to take advantage of up to Class 6 speeds at the most, since Class 10 wasn't out at the time and AFAIK, the hardware has to support the specific speed classes. Hence why it "only" showed up as twice as fast, whereas normally going from Class 2 to Class 10 would probably provide at least 3-4 times the speed increase.
Thanks for the information, though, and I'm envious.
Related
Hey guys , this is not a e-peen enlarging competition but rather a way to know the best overall SD cards on the market . I for example want to change my lying of a SD card , that even though says it's class 6 it definetely ain't
And for others.... it can be a e-peen competition if you want .
Don't forget to add name , class and write Speeds , a screenshot would be worth a thousand words but for the lazy ones , simply writing your speeds here will be fine too .
Cheers and take a look at the app https://market.android.com/details?id=ales.veluscek.sdtools&feature=search_result
D Tools - Info and Benchmark tools.
With SD Tools you can check your microSD card information (Name, Date, MID, OEMID,...). You can check if your card is fake. (Check serial number and MID and OEMID).
You can also benchmark sd card writing and reading speeds.
You can also submit results and information to internet. In future there will be results. (As soon I got enough results).
Please write to me sreenshot if there are some problems.
Does not shows Card Info On Galaxy S, but you can check speed of external sd Card.
Please write to me, if you got suggestions, or problem report. I can not reply you to comment. And I can't fix problems if I got no feedback. If SD Tools can not test external card, please let me know. (I know for Samsung Galaxy S)
Known bugs: Read speeds are sometimes incorrect (High values). This happened after reset.
Click to expand...
Click to collapse
My speeds .
SD : Teamgroup
Class : 6
Writing speed : 5 mb/s ( a far cry to the minimum 6 mb/s that it should be )
Read speed : 30mb/s ( mediocre once again I know )
Manufacturer: some dude on some ship
Model: SA08G
Class: unspecified, but I'd say "4"
Writing speed: 3,9 MB/s
Reading speed: 14,7 MB/s
Testing it on a computer yielded higher values though (4,2 & ~18 MB/s). Also, for daily use it proves to be OK.
Fujitsu (SU08G)
class 4
ran it three times
avg scores:
write: 4.2
read: 35.9666667
Trials:
trial1:
w: 3.6
r: 35.5
trial2:
w: 4.3
r: 35.7
trial3:
w:4.7
r: 36.7
using mik_os's CM7 beta3
I posted a thread related to this (and low I/O scores) before. Here are my speeds:
View attachment 547797
I have a Class 4 Sandisk 8 GB. I guess i got more than what i paid for.
BTW, what are memory prices down there where you live? I got the 8 GB class 4 Sandisk for INR 640 = 14 USD.
Something's not quite right...
Considering the fact that this comes from a Shanzai-ish company I bought the card from xD
kpbotbot said:
Something's not quite right...
Considering the fact that this comes from a Shanzai-ish company I bought the card from xD
Click to expand...
Click to collapse
What is this world coming to...
Redid the test. Same thing
kpbotbot said:
Redid the test. Same thing
Click to expand...
Click to collapse
Lol your tests aren't extraordinary at all . Everybody knows that microSD's are made by monkeys in suits and every once in a while some models are freakishly good.
If you want to be super sure just restart your phone and redo your tests but considering your reading speeds weren't flat out dumb ( 100 mb + ) where the bug usually occurs then it's ok
At my place a 8gb Sandisk class 4 is around 20-25 USD
kpbotbot said:
Redid the test. Same thing
Click to expand...
Click to collapse
How much you got it for? If its less than 14 USD then FML!
kewlsid05 said:
How much you got it for? If its less than 14 USD then FML!
Click to expand...
Click to collapse
12$. HAHAHAHAHAHAHAHAHA I'm not from the US and I just converted the price here to dollars. And oh, this is an 8GB card.
Lol your tests aren't extraordinary at all . Everybody knows that microSD's are made by monkeys in suits and every once in a while some models are freakishly good.
Click to expand...
Click to collapse
I know. That's why I said something's wrong. When I copy files to my SD via USB, I get 5.90MB/s, so that makes this card class 6. What boggles me is why I'm getting fast writes to the with my phone xD
And I understand my read speeds aren't that great
Model: Serioux 4 GB
Class: 6
Writing speed: 10.5 MB/s
Reading speed: 45.3 MB/s
kpbotbot said:
12$. HAHAHAHAHAHAHAHAHA I'm not from the US and I just converted the price here to dollars. And oh, this is an 8GB card.
Click to expand...
Click to collapse
Ya. I am not from US too. I too did the conversion from INR(Indian National Rupee)
Was just curious about the memory prices in other countries
Good for you mate. Next time i'll buy Shanzai instead of brand name product!
I suggest you don't. There's more to life than just read and write speeds. I bought this since it's extremely cheap compared to popular brands. I'm actually more concerned with flash storage life (read and write cycles are limited), but money is precious. Besides, my SD on my Symbian phone (bought almost 3 years ago) is still working perfect
Ya. I was just kidding. And anyway, 2 $ is not that big a deal.
I have always gotten sandisk/transcend flash memory since my no brand dirt cheap memory stick pro duo in my K750i went kaput.
badeaioan said:
Model: Serioux 4 GB
Class: 6
Writing speed: 10.5 MB/s
Reading speed: 45.3 MB/s
Click to expand...
Click to collapse
Hey where did youy get that from ?
Model: Sock SD 2GB
Class: Unknown
Writing speed: 5.8 MB/s
Reading speed: 35.4 MB/s
Write Speed - 9.8 MB/s
Read Speed - 16.0MB/a
16GB A-DATA Class 6 microSDHC
Wow , A-data cards have good speeds
From eMAG.ro .
Zerobarat1 said:
Hey where did youy get that from ?
Click to expand...
Click to collapse
Sent from my LG-P500 using XDA App
badeaioan said:
From eMAG.ro .
Sent from my LG-P500 using XDA App
Click to expand...
Click to collapse
Wow I think you got lucky buying a serioux and actually getting a beast of a Microsd . I think I'll try one 2 . Do you get microsd failuires or is it rock solid also?
Hi, I've recently purchased a class 10 16 gb sdhc card for my phone on ebay. I got 15MB/s write and 15MB/s read using the SD Card Speed Test application and i got 2MB/s write and 10MB/s read using my stock Class 2 8 gb sdhc card. Now I need to leave feedback and could anyone from this forum please tell me if this is a good speed for a class 10 card or did i get ripped off?
Eryklok said:
Hi, I've recently purchased a class 10 16 gb sdhc card for my phone on ebay. I got 15MB/s write and 15MB/s read using the SD Card Speed Test application and i got 2MB/s write and 10MB/s read using my stock Class 2 8 gb sdhc card. Now I need to leave feedback and could anyone from this forum please tell me if this is a good speed for a class 10 card or did i get ripped off?
Click to expand...
Click to collapse
Yeah you got ripped off because class 10 should give you 30mb/s read write
/sarcasm mode
Sent from my SAMSUNG-SGH-I897 using Tapatalk
LOL
Thats the speed of Class 10 dude !
you got what you paid for
but you can get better result by modifying buffers
you mean use a script to change the reading speed? yeah i know. and thanks for the replies guys i was just making sure no need to make fun of the noob greenstuffs :/
yep, thats what i mean,
it will speed up, read and write both ways !
Your write speed is really good, got 15MB/s, too with my Kingmax 16GB c10, but only once.
To improve your read speed you should install the app "SD increase", then you should get 25-30MB/s read or even more. My Kingmax is cheap (32€) because of that I "only" get 25-30MB/s read using the SD increase app.
When I changed the cache myself I got 40MB/s read, but after a reboot the changes are gone so I prefer the SD increase app.
@ zmbutt:
I think his write speeds won't increase (much), 15MB/s are already really high and not really affected by the buffer size.
it made no change at all :/ i got mine for $35 AUD lol
I'm confused on the Class rating for SD cards. I understand it to be a write-speed rating, and in my usage I'm more concerned with read throughput. My goal is to watch 480p and 720p content without jitters, and I'm not sure if the higher class matters or not for reads.
Thanks!
The write speed is going to be the same as the read speed. With flash memory fragmentation doesn't effect read speed much because of the low access time. With writing the card has to find an empty cell and write which could effect the writing performance. The class signifies that under heavy fragmentation the card should write at the speed of the class (i.e. class 10 should be 10 Mb/s). Also, regardless of fragmentation the card should read at the speed of the class. So in your case if your not needing high speed write then a class 2 or 4 should be fine. I personally wouldn't go below 4 because you never know if you might need the extra speed later.
Looking at Wikipedia the class is both Read & Write.
I personally use class 4 16GB cards and they seem to do the job fine on the re-encoded 1080/720 content I have on them.
I have a Class 10 Patriot Micro SDHC card and it works fine. I also tested with a Patriot SDHC (full size) in the sock and works fine. Both tested with 720p H264 MOV.
Heh I would be worried if a class 10 (being the fastest you can get) was having issues
Sent from my Transformer TF101 using Tapatalk
a class 10 is perfect for anything and ull only spend another maybe 10then a class 4. i only get class 10s or higher for my phones and cameras just in case i need the extra power
Sent from my PC36100 using Tapatalk
Full size SD's are pretty similar in price between classes but microSD's are insanely different... £17 for a class4 16GB or £40 for class10
alex5790 said:
The write speed is going to be the same as the read speed. With flash memory fragmentation doesn't effect read speed much because of the low access time. With writing the card has to find an empty cell and write which could effect the writing performance. The class signifies that under heavy fragmentation the card should write at the speed of the class (i.e. class 10 should be 10 Mb/s). Also, regardless of fragmentation the card should read at the speed of the class. So in your case if your not needing high speed write then a class 2 or 4 should be fine. I personally wouldn't go below 4 because you never know if you might need the extra speed later.
Click to expand...
Click to collapse
No. The class is the garunteed write speed, the read speed has no relation and can vary from card to card. I am using one of two cards in my tab, one a class 4 and the other a class 2 and neither have ever come close to having an issue streaming. The class 4 can read at over 16mb/s, Ive tested it.
The only reason to pay for a C6 or higher card is because you need to push data to it quickly., like recording video.
ryan stewart said:
No. The class is the garunteed write speed, the read speed has no relation and can vary from card to card. I am using one of two cards in my tab, one a class 4 and the other a class 2 and neither have ever come close to having an issue streaming. The class 4 can read at over 16mb/s, Ive tested it.
The only reason to pay for a C6 or higher card is because you need to push data to it quickly., like recording video.
Click to expand...
Click to collapse
+1. This is the correct answer. Good cards typically read much faster than the write speed.
Read speed is not correlated to the write speed or class rating at all...and in most cases, it's way higher than the write speed...
so theoretically even a class 1 card (if you can find one) is able to stream 720P content without much issues..but it will take forever to copy the content onto the card.
my class 10 card reads over 30MB/s and my class 4 does around 16MB/s
What card do you have? I was looking into getting one.
So, most of you probably noticed you have to have the Camera set to INTERNAL STORAGE in order for it to be even possible to shoot HD video as the external CLASS 4 SDHC card is incapable of writing fast enough. After searching all over the web I'm hearing about some successful upgrades to class 6 and even class 10 sdhc cards to fix this issue with mixed long-term results.
One of the issues I see popping up a lot with the class 10 cards is data corruption. Sometimes the data can be recovered with chkdsk, sometimes the card needs to be outright formatted to be useable again and all data is lost.
Does anyone know what causes that?
Is the Droid X2 even capable of taking advantage of the Class 10s speeds or is there an innate bottleneck that gives it speeds comparable to a good class 6?
Are certain cards performing better in the Motorola phones, such as this one?
I'm really interested in a 32GB card because the damn thing fills up quick when you shoot video, but I really don't want any headaches considering the cost of these things.
Has anyone with a Droid X2 upgraded to a 32GB Class 6 or 10 without any problems? Can you post benchmarks that show that the card is capable of writing at 10mb/s or faster?
I'll update this OP with any helpful feedback if it comes to that.
Please don't link me to any of the half of dozen other SDHC threads as it doesn't answer my question regarding the application, compatibility, and potential bottlenecks of Class 6 and 10 cards in a Motorola Droid X2.
I had a class 10 card, it gave me tons of errors. Sometimes just by plugging it directly into the computer would fix it. Twice that did not work and I needed a complete reformat.
I had my class 10 SD card in my Droid X2 for about 2 weeks before I needed a reformatting. But I'm a tech disaster zone, I think I ate a powerful magnet as a kid. But either way keep that number in mind. I got a quick replacement at walmart that didn't list the class, but it is working well now.
Oh and it was a 16gb card
Could you benchmark its write speed? If it's able to record 720 video without stuttering, all I need to know is how fast it's capable of writing data. Class 4s are apparently too slow, so it's probably a class 6.
ryoxsinfar said:
I had a class 10 card, it gave me tons of errors. Sometimes just by plugging it directly into the computer would fix it. Twice that did not work and I needed a complete reformat.
I had my class 10 SD card in my Droid X2 for about 2 weeks before I needed a reformatting. But I'm a tech disaster zone, I think I ate a powerful magnet as a kid. But either way keep that number in mind. I got a quick replacement at walmart that didn't list the class, but it is working well now.
Oh and it was a 16gb card
Click to expand...
Click to collapse
Sent from my DROID X² using the XDA Premium App
My TOPRAM 8GB class 10 works wonderfully, I haven't had a single issue.
Here's what I did. Removed old sdcard, installed new sdcard, powdered on phone, navigated to settings> sdcard & phone storage> unmount sdcard | format sdcard | mount sdcard.
Zero errors, it's been weeks since installation. Benchmarks 8.8MB read 13.7MB write.
Sent from my DROID X2
Awesome! This is the kinda feedback I'm looking for! Thanks, sweetheart.
juhde said:
My TOPRAM 8GB class 10 works wonderfully, I haven't had a single issue.
Here's what I did. Removed old sdcard, installed new sdcard, powdered on phone, navigated to settings> sdcard & phone storage> unmount sdcard | format sdcard | mount sdcard.
Zero errors, it's been weeks since installation. Benchmarks 8.8MB read 13.7MB write.
Sent from my DROID X2
Click to expand...
Click to collapse
i've got a 2yr old Kingston Class 6 8GB card that handles 720P video on this thing just fine. almost went for a class 10 but didn't feel the expense at the time was worth the minor speed boost. The handful of videos i still have are from a concert and going by size and length its writing around 1.5mb/s on average for mine. was a techno show, low light and lots of moving flashy lights.
Class 4's should be fine... but again i've rarely hit full speed with sd cards.
The Class 4 that it comes with isn't able to handle the HD video recording. View the resources section at the bottom of this post. There's also a youtube link to what kind of videos people are getting with class 4 SDHCs at the bottom of that list.
Could you bench your class 6 and post the results?
Here are two free apps that can do this easily for you:
An Tu Tu Benchmark
SD Tools
Thanks
SD Tools doesn't work on my X2 it says "Error reading buffer..."
I've tried to reinstall it as well with no luck. Anyone else having the same problem?
I just ran a test with AnTuTu, only I just realized there is only one spot for SD card speed. Did it just test my internal only? I also tried SD tools but it says "Read Buffer Error".
If it did test my external card then the Write was 5.2MB/s and Read was 8.2 MB/s. This card came from walmart, capacity 16gb, it was just what they had.
Ugh, stupid double post. Where's the dang post delete button? LOL
ryoxsinfar said:
I just ran a test with AnTuTu, only I just realized there is only one spot for SD card speed. Did it just test my internal only? I also tried SD tools but it says "Read Buffer Error".
If it did test my external card then the Write was 5.2MB/s and Read was 8.2 MB/s. This card came from walmart, capacity 16gb, it was just what they had.
Click to expand...
Click to collapse
Oh wow antutu only benchmarks the internal. Personally, I benched mine from my PC. I didn't try the android apps myself. I just assumed they worked. Does anyone know a benchmarking app that works for the Droid X2 External SD CARD? I use ATTO from my PC. I get consistent 4.2 MB/s on the external but on the internal I cap at around 5.4. This leads me to believe that a class 6 card is more than sufficient, but I'm really interested in investing into a class 10 for the long term.
I haven't heard of anyone having problems with class 6s, so that seems to be a safe bet.
Anyone else out there with class 10s on their DX2 wanna post some feedback?
Edit: Benching program SD Card Speed Test. I have run the tests w/ a class 6 but I forgot where I placed the text files, but ican say there is a pretty decent difference.
Edit 2: 16 GB PNY
RAN WITH A CLASS 10 SD CARD
5 runs w/o SD speed increase (128kb)
Trial #1 - Write speed - 10 MB/s Reading speed - 14 MB/s
Trial #2 - Write speed - 10 MB/s Reading speed - 9 MB/s
Trial #3 - Write speed - 7MB/s Reading speed 9 MB/s
Trial # 4 - Write speed 9 MB/s Reading speed 18 MB/s
Trial # 5 - Write speed 8 MB/s Reading speed 12 MB/s
Average : Write speed - 8.8 MB/s Reading speed - 12.4 MB/s (stock)
5 runs w/ SD speed increase (1024)
Trial #1 - Write speed 8 MB/s Reading speed 14 MB/s
Trial #2 - Write speed 10 MB/s Reading speed 11 MB/s
Trial #3 - Write speed 10 MB/s Reading speed 11 MB/s
Trial #4 - Write speed 7 MB/s Reading speed 8 MB/s
Trial # 5 - Write speed 5 MB/s Reading speed 11 MB/s
Average: Write speed - 8 MB/s Reading speed - 11 MB/s ( - .8 write speed (10% loss) - 1.4 reading speed (11.6% loss) from stock)
5 runs w/ SD speed increase (2048)
Trial # 1 - Write speed 11 MB/s Reading speed 22 MB/s
Trial # 2 - Write speed 15 MB/s Reading speed 25 MB/s
Trial # 3 - Write speed 12 MB/s Reading speeed 22 MB/s
Trial # 4 - Write speed 15 Mb/s Reading speed is 14 MB/s
Trial # 5 - Write speed 12 MB/s Reading speed is 25 MB/s
Average: Write speed - 13 MB/s Reading speed - 21.6 MB/s ( + 4.2 write speed (47% gain) + 9.2 reading speed (74% gain) from stock)
5 runs w/ SD speed increase (3072)
Trial # 1 - Write speed 10 MB/s Reading speed 22 MB/s
Trial # 2 - Write speed 14 MB/s Reading speed 16 MB/s
Trial # 3 - Write speed 14 MB/s Reading speed 14 MB/s
Trial # 4 - Write speed 8 MB/s Reading speed 22 MB/s
Trial # 5 - Write speed 13 MB/s Reading speed 22MB/s
Average: Write speed - 11.8 MB/s Reading speed - 19.2 MB/s ( + 3 write speed (34% gain) + 6.8 reading speed (54% gain) from stock)
5 runs w/ SD speed increase (4096)
Trial # 1 - Write speed 16 MB/s Reading speed 14 MB/s
Trial # 2 - Write speed 9 MB/s Reading speed 22 MB/s
Trial # 3 - Write speed 13 MB/s Reading speed 22 MB/s
Trial # 4 - Write speed 11 MB/s Reading speed 22 MB/s
Trial # 5 - Write speed 10 MB/s Reading speed 22 MB/s
Average: Write speed - 11.8 MB/s Reading speed - 20.4 MB/s ( + 3 write speed (34% gain) + 8 reading speed (64% gain) from stock)
Very nice. And you haven't had any issues with that card such as data corruptions with your Droid X²?
Sent from my DROID X² using the XDA Premium App
Calcobrena said:
Very nice. And you haven't had any issues with that card such as data corruptions with your Droid X²?
Sent from my DROID X² using the XDA Premium App
Click to expand...
Click to collapse
Zero, and I've had this card for at least 2-3 weeks now. One thing I can say though is the portioning seems to slow it down significantly, not sure if it frees up much RAM doing it anyways with most of the apps going to the SD instead of the internal flash. But w/o bloat removal and the V6 supercharger I had 180 MB of RAM free at one time. I've pushed the old vold.fstab back, and I'll check out the differences in speed once again, along with total free memory.
Awesome. I'm gonna go ahead and list this as a known compatible. Let me know if any issues crop up, please.
Sent from my DROID X² using the XDA Premium App
I can see where hidef video recording would be important to have a fast sd card, but some are assuming the sd card is the issue for audio pops on the DX2. The problem with that theory is that MP3s cache a chunk or (depending on size) all of the file to memory and there are parity checks for audio continuity. MP3s do not stream from the card, per say. Even cheap CD players buffer at least a few hundred KB with cache and more for better players (to cover for driving environment).
I thought my SD card was causing my Mp3 files to stutter but after moving them over to internal memory it only helped a bit and stuttering continues.
This thing is a pos =p
I also can not find an app called "sd card speed test"... which one are you using zetsumeikuro?
Calcobrena said:
Ugh, stupid double post. Where's the dang post delete button? LOL
Click to expand...
Click to collapse
I've got a 16GB Patriot Memory Class 10 that I have been using for almost a year now with no issues. Although it is in my Samsung Vibrant (Custom ROM / VooDoo). I upgraded from a class 4 and did notice quite a difference in access time.
PnoT said:
I thought my SD card was causing my Mp3 files to stutter but after moving them over to internal memory it only helped a bit and stuttering continues.
This thing is a pos =p
I also can not find an app called "sd card speed test"... which one are you using zetsumeikuro?
Click to expand...
Click to collapse
Never had any of the stuttering issues w/ mp3 etc. If you think the phone is a PoS get rid of it .
Thanks blaq, but unfortunately that doesn't help much because motorola devices are supposedly fussy with some class 10 cards causing file system and corruptions and whatnot that other manufacturers' devices aren't experiencing.
As for music I have been using google music without any skipping issues and it's also freed up a few gigs on my SD card.
Sent from my DROID X² using the XDA Premium App
Hello everybody,
So the thing is I want to buy another sdhc for the Streak (8/16 gb) but I want to know which class to buy. With sdtools I have an average of the the following ratings with a Sandisk 16gb class 2:
Writing speed: between 5.3 / 6.4 mb/s
reading speed: 12.3 / 17.2 mb/s
1. Does a class 6 or 10 will increase the overall speed? (I know 6/10 = minimum speed)
2. Are micro sd's from brands like Adata or Transcend also reliable in class 6/10?
3. Does the streak support class 10 and is it necessary or will be a class 6 enough?
Thanks!
Ruben
For my internal memory I'm using a Patriot LX 4gb class 10 and for my external memory the best card I have found is the adata class 10 16gb...
Those are the ones that IIIIIIIII use.... but others may recommend otherwise
Some benchnarks have shown that burst read write speeds on lower class cards are higher while the class 10 cards are better only for sustained reading and writing... such as restoring a nandroid and creating a nandroid...
I still use the class 10s
Awesome, thanks! Can you maybe post your reading / writing speed with the external card in the device (sdtools or another app).
I've read that Sandisk class 4 cards perform better at random access speed but I'm also really curious if a higher class card will go over 13/15 mb writing speed, because with a class 4 sandisk (4gb) I did get a constant rating around w9/r20 mb/s