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UFS 2.0 vs 2.1 vs 2.2 [Midrange Storage Chip Battle]

Written by zesushv

The purpose of this article is to draw a direct comparison between UFS 2.0 vs 2.1 vs 2.2, and also explain the technical properties of the different versions of UFS.

Devices with limited space for storage equipment, I.e smartphones, tablets and digital cameras are the main benefactors of the Universal Flash Storage technology.

Note: UFS is a technology associated with the ROM of a device.


The Universal Flash Storage Technology was introduced in 2010. UFS 1.0 was launched in 2011.

JEDEC is the General standardising organisation of UFS. JEDEC is in charge of keeping the Universal Flash Storage quality in check. JEDEC (Joint Electronic Device Engineering Council], is an independent semiconductor engineering trade organization based in the USA.

Command Queue  is a technology present in UFS that accelerates the speed of command execution in SSDs through a serial interface, and significantly increases data processing speed compared to the 8-bit parallel-interface-based eMMC standard.


☞︎︎︎☞︎︎︎NVMe vs UFS 3.1☜︎︎︎☜︎︎︎

Different storage chipsUFS standards alsoa adop the well known Small Computer System Interface(SCSI) 2 Architecture Model and command protocols that support multiple simultaneous commands and command queuing features to enable highly efficient multi-thread programming.[Samsung]


Universal Flash Storage [UFS] 2.0

Version 2.0 UFS is 50% closer to SSD in file transfer speed and consumes 50% less energy compared to previous generations of Universal Flash Storage version 1.1 and eMMC pro.

Samsung was the first smartphone company to launch a device with the Universal Flash Storage 2.0. The first device from Samsung to utilised the Universal Flash Storage 2.0 was the Samsung galaxy s6.

Notably, UFS 1.1 had a single lane for read/write tasks, this resulted in slower completion of tasks. The next generation of UFS version 2.0 created a solution by adding an extra lane for activities.

Added Information:
(Serial Interface) UFS
(Parallel Interface) eMMC/SD

UFS serial interface compared to eMMC parallel interface

UFS 2.1

Universal Flash Storage 2.1 was introduced to fix the security flaws in 2.0.


UFS 2.2

JEDEC “The purpose of this standard is the definition of a Universal Flash Storage electrical interface and a memory device.

This standard defines a unique Universal flash storage feature set that includes the feature set of eMMC standard as a subset.

This standard replaces JESD220C, version 2.1, and introduces a feature called WriteBooster”

What is WriteBooster?
WriteBooster reduces the startup time when an app is triggered, also improves cache loading time.

Browsers and general activities of a device using Universal flash storage 2.2 will see a significantly quicker response time compared to previous generation 2.1.

Read speed and data transfer has not been increased or improved upon when compared to 2.1.

UFS comparison table.

Year of launch. 201320172020
Storage Capacity. 128 GB, 256 GB512 GB, 1 TB, Automotive versions512 GB, 1 TB, Automotive versions
Sequential Read350 Mbps (with 128 GB), 850 Mbps (with 256 GB)860 Mbps ( with 512GB )860 Mbps ( with 512GB )
Sequential Write150 Mbps (with 128 GB), 260 Mbps (with 256 GB)255 Mbps ( with 512GB )255 Mbps ( with 512GB )
Random Read (IOP/sec)19,000 (with 128 GB), 45,000 (with 256 GB)42,000 ( with 512GB )42,000 ( with 512GB )
Random Write 14,000 (with 128 GB), 40, 000 (with 256 GB) 40,000 ( with 512GB ) 40,000 ( with 512GB )
Security Level. Same as previous generation. UFS 1.120% more secure than previous generation. UFS 2.0Same as previous generation. UFS 2.1
WriteBooster NoNoYes



The increase in data read/write speed of the UFS 2.0 over the 1.1 was a much needed improvement.

The security level of UFS 2.1 does guarantee a much safer environment to store and run different informations/files without losing data or compromising your privacy.

Universal Flash Storage 2.2 took a step further by providing a much faster device response time of activities thanks to the introduction of WriteBooster feature.

After going through the above information, I hope your next device of choice will be thoroughly sorted for when it comes to storage choice.

Well until the next one, ZesusHV signing you on. Do have a wonderful day.

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