What is UFS 3.0? How is UFS better than eMMC 5.1?

What is UFS 3.0?

Typically, smartphones and tablets have used older and cheaper eMMCs storage to store information. However, starting with the Samsung Galaxy S6, we have been seeing Universal Flash Storage (UFS) on flagship smartphones.

UFS 3.0 basically incorporates support for the latest high-density NAND memories and supports the latest and smarter interconnects between your phone’s chipset and memory for faster and more reliable communication between the two.

Overall, UFS (Universal Flash Storage )3.0 storage could almost double data bandwidth while consuming lesser power. These storages can also withstand higher temperature range (-40°C to 105°C) which makes them more suitable for automotive applications.

Another important UFS (Universal Flash Storage)3.0 feature is support for multiple RPMBs (replay protected memory block) with multiple RPMB keys. RPMBs are hardware partitions used for securely storing critical data like user billing information, DRM(Digital rights management ) content protection keys, etc. RPMB regions are fixed at manufacturing and are also configurable at manufacturing.

How is UFS better than eMMC 5.1?

eMMC, or embedded multimedia card, is a go-to memory solution for many consumer electronics, including tablets, smartphones, GPS systems, eReaders, and other mobile computing devices. Then, UFC came into the scene which is an advanced solution in comparison to eMMC. It has faster sequential read speed, sequential write speed, random read speed, and random write speed.

UFS touts a considerable improvement in performance due to the following reasons:

UFS can read and write simultaneously
Multiple commands can be addressed at the same time and the order of tasks can be changed accordingly.
UFS 3.0 vs. UFS 2.1 Speed Difference

Theoretically, it would propel a 2X increase in speed as it’s designed for twice the bandwidth of the current UFS 2.1 standard. This facilitates a transfer speed up to 11.6 Gbps per lanes and since there are two channels, a hyper-speed of 23.2 Gbps can be reached. But practically speaking, we could expect a speed of around 15 Gbps (1.875 GB/s).

Moreover, these communication channels between the chipset and storage will be relatively better trained to handle consistent application workload because of the additional QoS (Quality of Service) feature.

It is optimized for significant reductions in device power consumption and this will make flash storage more reliable at a greater range of temperatures. So, now you can capture a 4K and even 8K video without troubling the handset too much.

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