Recent reports have surfaced on Samsung working towards a high performance storage option for its mobile devices called Universal Flash Storage 2.0, or simply, UFS 2.0.
UFS 2.0 is a NAND flash-based memory module for smartphones that draws comparison with the solid state drives found in computers. This technology is considered to be the heir apparent to the current industry standard, eMMC storage. The defining factor that separates the UFS 2.0 from eMMC is the speed at which data is transferred. There are two variants reportedly being worked on by Samsung; the HS-G2, with a transfer speed of 725 MB/s and the HS-G3, with a transfer speed of 1.45 GB/s. For comparison, the fastest eMMC storage module in use today, eMMC v 4.5 has a meager transfer speed of 200MB/s, and even the latest eMMC v5.0 that has not been adopted by any device still clocks in at 400MB/s. To further widen the gap, UFS 2.0 is capable of reading and writing simultaneously as well as able to queue commands.
Some of you may be wondering if we do need data transfer speeds as seen in the UFS 2.0 for technology today? Well, the answer is no for now but it will become a necessity in the coming years. The next big thing expected to hit smartphones is 4k displays and with it comes 4k resolution content. Playback and content capture at this resolution will be a monumental task for the current eMMC, hence the future necessity for UFS 2.0.
While all this performance evaluations have us very interested in the UFS 2.0, there is still one stumbling block before it can become a mainstay. Being a technology in its infancy, UFS 2.0 will be much more expensive compared to eMMC. As such, we expect this technology to be reserved only for top of the range devices for next year at least.
Reports have suggested that Samsung is looking to be incorporating UFS 2.0 into its upcoming flagships in 2015, either the Galaxy S6 or even the Galaxy Note 5. With other reports stating that even XiaoMi has plans to incorporate this technology soon, it looks like the dawn of a new generation of NAND flash-based storage.
Source: Android Authority