Hi, can't find out much information, but does the SD card slot have USB 3.0 speed or USB 2.0 speed, cheap chinese devices use USB 2.0 and it's rather slow.
HiSilicon, a subsidiary of Huawei, mass produced these boards.
A design diagram can be found here:
https://en.alpha-star.org/docs/hardware-development-for-hikey960/hi3660-user-manual
Per 1.1.2 Interface Features, on Page 2-3, the MediaPad, regardless of its variants, utilizes SD 3.0 or SD 2.0 standards.
So, ideally, it should support up to 2 terabytes of storage and read/write speeds up to 50 megabytes. That is a rough estimate as I didn't breakdown the actual bus speed per parallel lanes but I'm positive it should be fast enough to meet everyone's needs.
thanks, i didn't mean SD standard, but rather the speed of the slot, but like you said if they mention SD3.0 then surely it can attain speeds above the ~30MB/s USB2.0 ceiling
Yes, that is what I meant; SD Slot speed. Upwards of 50 megabytes.
That is all dependent on what type of card you'll be utilizing.
Class 10 isn't going to be anywhere as fast as UHS-1 and neither will achieve the benefits of V Class.
Mine has shipped already so when I get mine in hand, I'll test whatever cards I have and post results as a reference.
My class 10 reads at 55 MB/s and writes at 47 MB/s, at least according to the benchmark I downloaded.
Tested a Samsung Evo Plus 128GB UHS III MicroSD card.
Speeds were within the specified threshold of the manufacturer's designation.
See attached.
Related
Hi all,
I need your opinion. I'm planning to buy a Sandisk 512MB SD Card. How much does it compare with the 256SD Card with regards to speed? Is reading/writing much slower because of its bigger size? BTW my device is XDA. Thanks
My understanding of speed diffs
I don't think 256 vs 512 will make speed differences. The speed differences come between specific cards. My brief research yesterday suggested to me that SanDisk are kinda slow, even the Ultra II cards. It seems the fastest card, consistently, is the Panasonic. I have a plain 256MB sandisk card it PocketMechanic benchmarks it at 0.7x. I will test my new Panasonic card when it arrives later today (hopefully!).
Just for comparison, Lexar 32x cards are rated at 4.8MB/s, the Panasonic is supposedly rated at 10MB/s.
Another data point, I saw a discussion on Amazon.com reviews about the SanDisk 512 and somebody stating it was faster than the 256.
All this leads to: you really need to benchmark the specific cards you are interested in to see if they meet your speed needs. Speed is really variable, people talking about a single process that takes 45 minutes on one card and just like 1 minute on another card (brand).
Got the panasonic card
I got the panasonic card. It writes at "2.9x" as opposed to "0.7x" I got with the stock sandisk. That is better than 4 times the speed. Benchmarked using Pocket Mechanic on an XDA.
I'm familiar with the difference between the class 4 (4MB/s transfer speed) and the class 6 (6MB/s transfer speed). But is there any value in using a class 6 card on the XV6800 (regardless of size)?
I ask because I have a 4GB class 6 A-Data microSDHC card in my XV6800 right now and there is no problem at all with it. However, I am considering purchasing an 8GB class 4 Sandisk microSDHC card. So it got me thinking, even thought the A-Data card is capable of a faster transfer speed, that doesn't mean the XV6800 is ever actually using that extra speed. So would I see any slowdown if I moved to a "slower" spec'd microsdhc card?
I looked around for transfer speeds on the XV6800's microSD card slot and didn't come across anything.
Anyway have any data on this? Thanks in advance.
Depends some on what you are using it for but I doubt you will notice much of a difference. When transferring using a card and a card reader from your computer you may notice a difference but otherwise the interface in the phone itself doesn't seem to be all that fast anyway.
Don't get me wrong, I appreciate the comment, but that's why I'm asking if anyone has any actual data. The device either reads and writes to the microsd card slot above 4MB/s or it does not. I have not found a way to benchmark it so I'm looking for some actual detail. But thank you.
So I found an application that is supposed to measure the transfer speeds of the card slot on a Windows Mobile device. It's from Audacity Audio. The link on Softpedia is here.
I'm familiar with the application because I used the Palm OS version on my old Treo 700P. The problem is that he results always seem inconsistent and confusing.
In any event, I ran the test on two different microSD cards. The first is an empty 1GB Sandisk microSD card with. These cards don't have a "class" rating. The second is a 4GB AData Class 6 microSDHC card. I still had 2.5GB of the 4GB empty.
1GB
Wrt32bit/Wrt8KB/Read8KB
1105/330572/7943757
1105/335208/7710117
1123/366634/7710117
1030/311705/7489828
1070/306242/7489828
Avg
1086/330072/7668729
4GB
1462/109317/6393756
527/111408/6241523
1462/119482/4161015
517/85724/6241523
1581/126334/6241523
Avg
1109/110453/5855868
Honestly, the scores don't seem to make much sense. The read speeds all indicate north of 4MB/s and most of the time above 6MB/s. That's good. But the write speeds seem pointless. 330KB/s (.3MB/s) for the 1GB and 110KB/s (.1MB/s) for the 4GB ?!?!?! That doesn't seem right.
Anyway, any ideas would be welcome.
Write speeds are typically going to be a great deal slower for flash memory. And larger cards being even slower for writing makes a twisted sort of sense. All flash cards have "load-leveling" algorithms built into them to spread the writes across the flash disk in order to reuse locations as little as possible (flash memory cells have a limited lifetime). So the bigger the card, the more memory the load leveler has to manage. Of course, I could have it completely wrong....
A friend of mine just bought a Galaxy SII and wants to know if it's worth getting a class 10 card. Can the phone write to the SD at that speed. What is the maximum speed the phone can write to the card at?
The question is what you are planning to do with your phone to make use of such a high speed.
Class 4 means a writing-speed of at least 4MB/s. Even ignoring the fact that most cards can write significant faster in reality than their Class indicates, there is nothing you can really do with a phone to use this speed.
The fastest writing-speed you will need is when recording movies, and the highest bitrate the default camera uses is 17MBit/s.
With a Class 4 card you can record at least 32MBit/s.
Of course you can transfer your media faster on your card, if the writing-speed is higher, but how important is that?
It is a good point put forward by the poster above.
I have a class 10 card and it only comes in handy when transferring files to and from the card. Transfer speed is about 14MB/s with a patriot clss 10 16 GB from my experience so appears to be limited by the speed of the card. And writing is over 10MB/s which the class 10 part defines.
Mini Review:
All these cards come at the speeds they're advertised at. HOWEVER, and this is very important!: It should be noted that the R/W speeds will differ greatly depending on if you're running exFAT or NTFS.
Benchmarks:
See below for the speeds, though you should keep in mind that your average tablet or phone will most likely throttle the speeds since the voltage output is way lower than on a desk/laptop.
Benchmarks for 128GB 45MB/s, 128GB 80MB/s, 200GB 90MB/s using exFAT:
Benchmarks for 128GB 45MB/s, 128GB 80MB/s, 200GB 90MB/s using NTFS:
I use my trusty Silicon Power USB 3.0 AIO card reader for these tests in case anyone is curious. See attached pictures below for reference when buying say off shady sites or retailers as fakes are easy to come by.
Thanks for the info!
Do you think there is any advantage in getting a microSD card with faster Read/Write speed. such as the Samsung Evo+ or Pro? or is the Read speed limited by the Shield K1's microSD slot?
If you are using marshmallow (6.0) the faster write speeds can be advantageous when using the SD card as internal storage. Apps on the SD card will use the SD card for writing temp files.
schmacky said:
Thanks for the info!
Do you think there is any advantage in getting a microSD card with faster Read/Write speed. such as the Samsung Evo+ or Pro? or is the Read speed limited by the Shield K1's microSD slot?
Click to expand...
Click to collapse
Depends on what you're after really. If you only plan on filling it up with Plex/media content, then speed shouldn't be an issue for most once it's there. But if you plan on writing 100GB worth of content back and forth daily, then I would recommend a faster sdcard.
If you plan on using it as internal storage in conjunction with the internal one (feature introduced with 6.0) then I would also recommend a faster card so it matches the eMMC onboard storage speed since it's faster than this sdcard I currently have, not to mention if you plan on gaming (Android and or Shield only games) a lot on this device. For emulathors and stuff this card is enough.
Has anybody some experience with one of those?
-SanDisk Extreme Pro microSDXC (up to 95MB/Sec, Class 10, U3)
-Kingston SDCA3/64GB microSDHC/SDXC (UHS-I U3, 90R/80W)
According to this fairly recent comparison and benchmarks, they are one of the best:
http://www.techfunology.com/electro...for-photography-action-cams-and-videocameras/
I will hopefully update the thread with the 128GB 80MB/s version as of tomorrow as I managed to snag one for a little over 50€ (Remember, EU here! We have no luxury with 200GB microSD cards being sold for the same price or having 1 gallon of whatever costing the same as 1L of equivalent substance).
edit: no package until monday... sadface.jpg.
poo any decent 64gb cards? was looking at the Samsung evo or SanDisk Ultra 64 GB up to 80 Mbps
@ady702: actually yes.
I made a short benchmark of my 64GB Kingston card (that I mentioned above already):
Results: SD Card - Performance comparison ExFAT vs. NTFS (Benchmark)
Vankog said:
@ady702: actually yes.
I made a short benchmark of my 64GB Kingston card (that I mentioned above already):
Results: SD Card - Performance comparison ExFAT vs. NTFS (Benchmark)
Click to expand...
Click to collapse
so the Kingston would be better than the other two? or is it down to the formatting?
It just means, the Kingston is good.
Though, the thread particularly only tells you that you should format sd cards as NTFS.
I want to have a new micro SD card ready to go when I pick up my V30+ next week. There are some decent deals for 128GB cards at BestBuy and Amazon. I have tried searching for the info but haven't had any luck finding the maximum read and write speeds the LG V30's micro SD slot is capable of.
Samsung EVO Plus 128GB - BestBuy
Samsung EVO Select 128GB - Amazon
They are essentially the exact same card, just different branding due to when they were manufactured. Same specs and all but the EVO Select seems to be the newer of the two where the EVO Plus has been around since 2015. If the V30's micro SD card slot isn't capable of 100MB's read and 90MB's write, then I may as well go for something cheaper and slightly slower and save $7.
SanDisk Ultra Plus 128GB - BestBuy
Is anyone aware of what the maximum capabilities of the V30's micro SD slot is capable of? Is there a way to test this that someone wouldn't mind testing and posting their results?
jcsww said:
Is anyone aware of what the maximum capabilities of the V30's micro SD slot is capable of? Is there a way to test this that someone wouldn't mind testing and posting their results?
Click to expand...
Click to collapse
Somebody did that a few weeks ago, I'll see if I can find the post.
EDIT
I was mistaken. It was the internal storage read/write speeds they tested.
V30 Internal storage speed?
https://forum.xda-developers.com/lg-v30/help/v30-internal-storage-speed-t3687990
They were trying to determine whether the LG V30/V30+ had UFS 2.0 or 2.1. It has UFS 2.1. (Earlier this year, Samsung shipped some S8 phones with both standards -- the Snapdragon S8 got 2.0 while the Exynos S8 got 2.1, while all chipset versions of the S8+ got 2.1.)
But several websites have done thorough reviews and have stated what's inside the V30/V30+, including exact components...
ChazzMatt said:
Both the LG V30 and V30+ have Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage
LG's press release:
http://www.lgnewsroom.com/2017/08/l...ier-with-premium-cinematography-capabilities/
Memory:
V30: 4GB LPDDR4x RAM / 64GB UFS 2.1 ROM / MicroSD (up to 2TB)
V30+: 4GB LPDDR4x RAM / 128GB UFS 2.1 ROM / MicroSD (up to 2TB)
Click to expand...
Click to collapse
Other sites even give the manufacturer and component number:
https://www.androidheadlines.com/2017/10/lg-v30-review-ultimate-creativity-tool.html
Inside is a Qualcomm Snapdragon 835 chipset with Adreno 540 GPU, 4GB of LPDDR4X ram and either 64GB or 128GB of Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage, all with microSD card support for expandable storage.
Click to expand...
Click to collapse
This 6-inch display features a Quad-HD+ (1440 x 2880, 538 PPI) resolution 18:9 panel with nearly zero bezels all around, and is covered in Gorilla Glass 5. It’s also both Dolby Vision and HDR10 compliant. Inside is a Qualcomm Snapdragon 835 chipset with Adreno 540 GPU, 4GB of LPDDR4X ram and either 64GB or 128GB of Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) internal storage, all with microSD card support for expandable storage.
Click to expand...
Click to collapse
As it’s pushing the same resolution screen as the G6 with a processor and GPU boost, it’s pretty obvious why the phone feels so blazing fast all the time. Combine this with Toshiba UFS 2.1 (THGAF4G9N4LBAIRB) storage and you’ll quickly understand that LG has outfitted the V30 with the highest end components available right now.
Click to expand...
Click to collapse
Even the Toshiba UFS 2.1 storage inside is a perfect match for Samsung’s best UFS 2.1 storage, which is used in most flagships now, and averages out just as fast as those chips. See the results of the benchmark suite we run for each phone, including 3DMark Slingshot, GeekBench 4, AnTuTu V6 and Futuremark’s PCMark internal storage test.
Click to expand...
Click to collapse
https://www.anandtech.com/show/11789/hands-on-with-the-lg-v30
Under the hood, the V30 is powered by Qualcomm's Snapdragon 835, with LG using a heatpipe to assist in cooling. This is paired with 4 GB of LPDDR4X, and either 64GB or 128GB of UFS 2.1 storage.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Just used the A1 SD card speed test app. LG V30 - Samsung 128GB Evo Select formatted as a 'removable' storage device - did the standard 4GB size write / read test twice without closing apps etc (so bit of a real life test) and once did reboot (waited 5 minutes before launching), ran the accurate test (does write, then reboot again with another 5 minute wait, then does read):
Test 1
Read - 64.01 MB/s
Write - 35.38 MB/s
Test 2
Read - 65.25 MB/s
Write - 33.13 MB/s
Test 3 (accurate test)
Read - 60.56 MB/s
Write - 37.63 MB/s
Based on other benchmarks I have seen for this SD card (~95 MB.s read and ~70 MB/s write), it does appear the V30 is not able to get full speed out of it.
And just for 'fun' here is what the internal memory was capable of in this app (only ran the 4GB test once):
Read - 524.87 MB/s
Write - 199.30 MB/s
I am wondering if even if it were stuck at the slower speeds, would this have any impact on the camera, video, music, etc? I am planning on using a 128G SD card also if I get this phone.
pjcforpres said:
Just used the A1 SD card speed test app. LG V30 - Samsung 128GB Evo Select formatted as a 'removable' storage device - did the standard 4GB size write / read test twice without closing apps etc (so bit of a real life test) and once did reboot (waited 5 minutes before launching), ran the accurate test (does write, then reboot again with another 5 minute wait, then does read):
Test 1
Read - 64.01 MB/s
Write - 35.38 MB/s
Test 2
Read - 65.25 MB/s
Write - 33.13 MB/s
Test 3 (accurate test)
Read - 60.56 MB/s
Write - 37.63 MB/s
Based on other benchmarks I have seen for this SD card (~95 MB.s read and ~70 MB/s write), it does appear the V30 is not able to get full speed out of it.
And just for 'fun' here is what the internal memory was capable of in this app (only ran the 4GB test once):
Read - 524.87 MB/s
Write - 199.30 MB/s
Click to expand...
Click to collapse
Excellent! Thank you!
banshee28 said:
I am wondering if even if it were stuck at the slower speeds, would this have any impact on the camera, video, music, etc? I am planning on using a 128G SD card also if I get this phone.
Click to expand...
Click to collapse
That should be enough to handle 4k and pictures being directly written to the micro SD card. You will want a card that is better than those speeds but there isn't any need to go for anything super expensive that are rated for super fast performance.
Found Out Too late..
While the measurement numbers are great info - I didn't need to run a test, I noticed as soon as I tried to play some PSone and PSP games. Any game with heavy disc access while trying to play (sports games especially, due to commentary) stuttered like I was running them off of an external USB hard drive. Move the game to internal storage and (obviously, from the benchmarks, above) no trouble at all.
This is disappointing, as I picked up this phone expressly due to its specs for playing games (It was on sale, and replaced my cheapie Blu phone). Not the end of the world; I can move games to internal that are particularly problematic, but rather annoying and ironic, as the games most affected are the ones taking up the most space, requiring the extra MicroSD storage...
Vinc3Has3 said:
While the measurement numbers are great info - I didn't need to run a test, I noticed as soon as I tried to play some PSone and PSP games. Any game with heavy disc access while trying to play (sports games especially, due to commentary) stuttered like I was running them off of an external USB hard drive. Move the game to internal storage and (obviously, from the benchmarks, above) no trouble at all.
This is disappointing, as I picked up this phone expressly due to its specs for playing games (It was on sale, and replaced my cheapie Blu phone). Not the end of the world; I can move games to internal that are particularly problematic, but rather annoying and ironic, as the games most affected are the ones taking up the most space, requiring the extra MicroSD storage...
Click to expand...
Click to collapse
Go AOSP/non-Stock, format microSD to ext4, flash custom kernel and see how it changes things,
write speed will be improved by 100% (so twice as fast), read speed approx. around 10-20% (or more) compared to exfat.
Also custom kernel got general speed improvements so that might make a difference - haven't tried running anything particularly heavy off the microSD though.
That particular thing is probably the reason why Android/Google doesn't recommend using microSDs - it can really degradate and mess with experience/fun at times
zacharias.maladroit said:
Go AOSP/non-Stock, format microSD to ext4, flash custom kernel and see how it changes things,
write speed will be improved by 100% (so twice as fast), read speed approx. around 10-20% (or more) compared to exfat.
Also custom kernel got general speed improvements so that might make a difference - haven't tried running anything particularly heavy off the microSD though.
That particular thing is probably the reason why Android/Google doesn't recommend using microSDs - it can really degradate and mess with experience/fun at times
Click to expand...
Click to collapse
Thank you for this info! I will definitely look into it - Although I just ran a few tests of my OLD phone, (A Blu Vivo 2(?) XL(?) - I forget), and it's read time from the micro Sd is atrocious, like 32 read and 24 write, and yet it plays PSone games just fine from the Micro SD - the SAME Micro SD that the LG V30 is stuttering on (and I've tried a drawer-full, now) - which leads me to believe it's some other type of bottleneck. After all, an actual PSone cd only reads form 150 to 300 KB (not MB) of data per second. Even with a single emulator emulating individual autonomous chips, there should be headroom, I would think, to keep things going.
... Aannnnd this moves me off-topic from this thread - So I'll stop right there.