View Poll Results: What is your S8 variant and what flash chip do you get?

I have an Exynos S8 and I get UFS 2.0
8 Vote(s)
I have an Exynos S8 and I get UFS 2.1
274 Vote(s)
I have an Snapdragon S8 and I get UFS 2.0
85 Vote(s)
I have an Snapdragon S8 and I get UFS 2.1
85 Vote(s)

UFS 2.0 or 2.1? Identify the flash chip in your S8

486 posts
Thanks Meter: 357
By lch920619x, Senior Member on 5th May 2017, 03:28 AM
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Before we make any conclusion of Samsung putting inferior components in some S8 units, please read the following, I think Aamir Siddiqui has written it well enough:


Theoretically speaking, the difference between UFS 2.0 and UFS 2.1 objectively exists and is large enough for phone OEMs to tout the superiority of one over the other.
Practically speaking, most average users and even smartphone enthusiasts will not be able to distinguish between the performance of UFS 2.0 versus UFS 2.1, unless they compare both side-by-side. In real life and daily usage, UFS 2.0 will unlikely be the bottleneck in your flagship experience. Had Samsung gone for eMMC 5.1, the memory specification would have had a much more profound and noticeable impact on your experience. Thus as a silver lining, Samsung is only juggling between UFS 2.0 and UFS 2.1 for now.

For the information we have gathered so far, we have come to the following conclusion, if anyone has any finding that differs from this please let us know and show us the screenshot:


Samsung UFS 2.1:
All Exynos Models -> S8 / S8+
Toshiba UFS 2.1:
Snapdragon Model -> S8+ ONLY.
Toshiba UFS 2.0:
Snapdragon Model -> S8 ONLY.

Original Post:
Interesting fact: on their website, Samsung used to list S8/S8+ with UFS 2.1 flash storage, however now they have changed the specs and listing only UFS without specifying whether its 2.0 or 2.1.
See below screenshots of Samsung official website, I took the first screenshot 1 week ago and the 2nd today. Samsung has silently removed the UFS 2.1 line.
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Now we know that some S8s are using ufs 2.1 chips while others using ufs 2.0 only.
Luckily there's a way to exactly identify your flash chip.
Download any terminal emulator from play store.
for example this one will work
Material Terminal
then type in this in the terminal window:
cat /proc/scsi/scsi
and you should get the exact model no. of your flash chip, taking my SM-G950FD as an example, i get this:
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what I circled in red is the ufs model number:

In this case get:
a quick google search reveals that this is a UFS 2.1 chip made by Samsung, using MLC flash.

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Now what I heard is that all exynos variants of S8 and S8+ uses UFS 2.1, all Snapdragon S8+ also uses UFS 2.1, and only some Snapdragon S8 uses UFS 2.0.

You may also get something like:
These two are made by Toshiba, the one ends with IR something is UFS 2.1 while the one ends with TR is UFS 2.0. There might be slight variations in the model no. , anyway it's the letter I and T that matters.

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Alternatively you can use Androbench to test the speed of your flash chip. For the sequential read speed, I believe that S8 with UFS 2.0 usually fall in 500MB/s range, while those with UFS 2.1 can get close to 800MB/s. However keep in mind that this is not the accurate way to go, if you really want the truth, pls use terminal and the code.
For example results from my UFS 2.1 S8:
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Please test your own S8 and let us know what you get.
The Following 11 Users Say Thank You to lch920619x For This Useful Post: [ View ] Gift lch920619x Ad-Free
5th May 2017, 04:05 AM |#2  
altimax98's Avatar
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I've got IRA and it is 2.1
5th May 2017, 04:13 AM |#3  
Thanks Meter: 7
I have the TRC. Disappointing, though not totally sure I'd never notice the difference in practice. Verizon S8.
5th May 2017, 05:46 AM |#4  
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What's the difference though
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5th May 2017, 05:49 AM |#5  
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Originally Posted by soggly

What's the difference though

Storage speed will be different. However I don't think there'll be any perceptible difference during everyday usage
5th May 2017, 08:23 AM |#6  
Senior Member
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TRA here on the Verizon s8 Didn't Huawei or someone just get slammed for doing this exact same thing?
5th May 2017, 11:47 AM |#7  
Senior Member
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UFS 2.1 Exynos
5th May 2017, 11:53 AM |#8  
MistaJae's Avatar
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Just checked my S8 Exynos (UK). I have UFS 2.1
5th May 2017, 01:33 PM |#9  
Junior Member
Flag Dallas
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Verizon S8+ here on IRA 2.1
Thanks for the info
5th May 2017, 01:37 PM |#10  
Senior Member
Flag San Rafael, CA
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Verizon S8, TR chip, rev 0600. 547/135 read/write. looks like ufs 2.0 and if what Sammy marketed was 2.1, that's an easy cause for a return.

That said, I absolutely love the device despite being the first non-rooted Android I've ever owned. I'm happy enough to keep it until the pixel 2 shows itself.
5th May 2017, 01:55 PM |#11  
mobilehavoc's Avatar
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I have TRA ending on mine so assume that's UFS 2.0

I have a Verizon S8. While obviously faster is always better - how much difference does it make in real world? I don't spend time running benchmarks all day so curious if anybody has both devices accessible and do some real world tests like launching apps, multitasking, etc.

---------- Post added at 08:55 AM ---------- Previous post was at 08:53 AM ----------

I wouldn't be surprised if Samsung used UFS 2.1 for their own Exynos devices and possibly for Qualcomm S8+s since more expensive. Anybody here have an S8 qualcomm version with UFS 2.1? My guess is most S8 Qualcomm (regular) are using UFS 2.1 storage and S8+ Qualcomm are using UFS2.1
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