Stefan Mileschin

GIGABYTE this week expanded its lineup of SSDs with its new M.2 PCIe drives. The company keeps its cautious approach to the storage market and for now continues to aim at the entry level segment. The new drives are based on Phison’s reference design and controller, and the new drives show that GIGABYTE is going to stick to its partnership with this vendor.

GIGABYTE’s M.2 PCIe SSDs will be available in 128 GB, 256 GB, and 512 GB configurations, which are popular capacities for entry-level gaming PC-graded SSDs. The drives are based on Phison’s PS5008-E8T controller and Micron's or Toshiba’s 3D TLC NAND memory. This controller is one of Phison’s cheapest PCIe solutions: it supports NVMe 1.2 interface, it has four NAND channels, it does not support a DRAM buffer, and it uses a PCIe 3.0 x2 interface, which means that the new drives clearly outperform low-end SATA SSDs, but are considerably behind higher-end PCIe 3.0 x4 drives.


Speaking of performance, GIGABYTE claims that its M.2 PCIe 256 GB offers up to 1200 MB/s sequential read speed as well as up to 800 MB/s sequential write speed (with pSLC enabled). As for random performance the maker rates the drive for up to 80K/150K read/write IOPS. The lower-capacity M.2 PCIe 128 GB is capable of up to 1100 MB/s sequential read speed, up to 500 MB/s sequential read speed, as well as up to 90K/100K read/write random IOPS. It is noteworthy that sequential performance numbers that GIGABYTE publishes for its M.2 PCIe SSDs are considerably lower when compared to official performance numbers Phison declares for its PS5008-E8T controller. At the same time, its random performance numbers are actually higher than what Phison expects from its chip. Perhaps, GIGABYTE decided to tune its M.2 PCIe SSDs somehow, or maybe use a custom firmware from Phison.

https://www.anandtech.com/show/13379...s-m2-pcie-ssds