The SM951 boasts outstanding performance, supporting both PCIe 3.0 & PCIe 2.0 interfaces. It can read & write sequentially at 1, 600MB/s (megabytes per second) & 1, 350MB/s respectively based on PCIe 2.0. For ultra-slim notebooks & workstations wanting to adopt the PCIe 3.0 interface, the SM951 can read & write sequentially at 2, 150MB/s & 1, 550 MB/s respectively, which would provide Approx. four times faster sequential reading performance compared to current SATA SSDs. With a PCIe 3.0 interface, the drive achieves substantially higher energy efficiency, requiring only about 450MB/s per watt for sequential reading & 250MB/s per watt for sequential writing. In addition, the SM951 is the first SSD to adopt the L1.2 low power standby mode as defined by PCI-SIG (the PCIe standards body). By embracing the L1.2 level of standby operation, the SM951's power consumption is drastically reduced
- to under 2m W, about a 97 percent decrease from the 50m W consumed using a L1 state. Samsung's SM951 comes in the M.2 form factor, which is only about one seventh the size of a 2.5 inch SSD. The drive's compactness is well suited for most notebook PC designs, freeing up space for other components including the battery.