UFS 2.0 vs UFS 2.1 vs UFS 3.0 vs UFS 3.1 | Difference between UFS 2.0 UFS 2.1 UFS 3.0 UFS 3.1

This page compares UFS 2.0 vs UFS 2.1 vs UFS 3.0 vs UFS 3.1 and mentions difference between UFS 2.0, UFS 2.1, UFS 3.0 and UFS 3.1 with respect to speed and IOP/sec.

What is UFS Storage ?

The UFS (Universal Flash Storage) is successor to existing eMMC standard used as memory in high end mobile phones from Samsung and OnePlus . UFS interface offers performance benefits like SATA used in PCs and low power consumption like eMMC. It is positioned to be replacement of eMMCs and SD cards.

It acts as SSD of smartphone to provide better user experince and faster responses. UFS contains NAND flash memory and controller. UFS has serial interface with full duplex data transfer. It offers higher number of input/output operations per second as well as higher bandwidth compare to eMMC's 8 bit parallel interface.

UFS version 1.0 and 1.1 has been introduced in the year 2011 and 2012 respectively. Both the versions had support of 300 Mbps bandwidth per lane.

UFS cards are available in various sizes such as 32, 64, 128, 256, 512 GB. Following section mentions difference between UFS 2.0, UFS 2.1, UFS 3.0 and UFS 3.1 versions with respect to speed and Input/output operations per second (IOP/s).

UFS 2.0

Following are features of UFS 2.0 .
• Introduction year : 2013
• Memory options : 128 GB, 256 GB
• Sequential Read (Mbps) : 350 Mbps (with 128 GB), 850 Mbps (with 256 GB)
• Sequential Write (Mbps) : 150 Mbps (with 128 GB), 260 Mbps (with 256 GB)
• Random Read (IOP/sec) : 19,000 (with 128 GB), 45,000 (with 256 GB)
• Random Write (IOP/sec) : 14,000 (with 128 GB), 40, 000 (with 256 GB)

UFS 2.1

Following are features of UFS 2.1.
• Introduction year : 2017
• Memory options : 512 GB, 1 TB, Automotive versions
• Sequential Read (Mbps) : 860 Mbps ( with 512GB )
• Sequential Write (Mbps) : 255 Mbps ( with 512GB )
• Random Read (IOP/sec) : 42,000 ( with 512GB )
• Random Write (IOP/sec) : 40,000 ( with 512GB )

UFS 3.0

Following are features of UFS 3.0.
• Introduction year : 2019
• Memory options : 256 GB, 512 GB
• Sequential Read (Mbps) : 2100 Mbps ( with 512GB )
• Sequential Write (Mbps) : 410 Mbps ( with 512GB )
• Random Read (IOP/sec) : 63,000 ( with 512GB )
• Random Write (IOP/sec) : 68,000 ( with 512GB )

UFS 3.1

Following are features of UFS 3.1.
• Introduction year : 2020
• Memory options : 256 GB, 512 GB
• Sequential Read (Mbps) : 2100 ( with 512GB )
• Sequential Write (Mbps) : 1200 Mbps (3 x enhancement) ( with 512GB )
• Random Read (IOP/sec) : 100,000 (1.6 x enhancement) ( with 512GB )
• Random Write (IOP/sec) : 70,000 (1.3 x enhancement) ( with 512GB )

Also refer advantages or benefits of UFS storage interface over e-MMC.

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