Difference Between eMMC and UFS

In this article, we are going to highlight the difference between EMMC and UFS and how they work. Embedded multimedia card or eMMC, is a NAND flash memory for mobile applications and a memory solution whereas UFS or Universal Flash memory is the next generation of Flash memory. UFS is providing flash memory with high data transfer speed, high reliability, and low power consumption and offers sequential read-write speeds to support live streaming and augmented reality applications in mobile devices. UFS will be the next-generation flash memory standard for automotive applications as well.

eMMC and UFS
UFS Chip

Both are applied in solutions such as:

  • Tablets,
  • Smartphones,
  • GPS systems,
  • eReaders,
  • Automotive applications
  • and other mobile computing devices.
eMMC and UFS

Difference Between eMMC and UFS

  • UFS has Low voltage differential Signalling (LVDS) signaling interface.
  • UFS has a command Queue (CQ) to sort out commands to be carried out and allow multiple commands to be carried out.
  • eMMC is half-duplex hence either read or write into the memory is possible.
  • UFS is a full-duplex interface and allows simultaneous read and write.
  • UFS supports advanced features like Deep Sleep, write booster, and throttling notifications to the host.
  • eMMC is slower than UFS.
  • eMMC is cheaper and most widely used in smartphones and most consumer devices as storage devices.
  • UFS 4.0 can support bandwidth up to 4800 MB/s

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