I did some quick and dirty I/O testing of these six drives with CrystalDiskMark 7.0.0. Finally, the Intel Optane SSD is using the Intel NVMe driver version 5.1 Some Quick Comparative CrystalDiskMark Results in 2020 Samsung has not released an NVMe driver for the Samsung 980 PRO, and I don’t think they are planning on it. The Samsung 980 PRO is using the Microsoft NVMe driver, while the Samsung 970 EVO Plus drives are using the Samsung NVMe driver version 3.3. 280GB Intel Optane 900P PCIe 3.0 NVMe SSD.(2) 1TB Samsung 970 EVO Plus M.2 PCIe 3.0 NVMe SSD.500GB Samsung 980 PRO M.2 PCIe 4.0 NVMe SSD.

There are three M.2 PCIe NVMe SSDs, one AIC PCIe NVMe SSD, one 2.5″ SATA SSD, and one 3.5″ SATA HDD. PCIe 4.0 has twice the bandwidth per lane compared to PCIe 3.0. The latest generation video cards from both AMD and NVIDIA support PCIe 4.0. In my case, I have an AMD Radeon 5700XT video card that is PCIe 4.0. You can minimize any possible impact from this by using a PCIe 4.0 video card instead of a PCIe 3.0 video card. This might sound bad, but it is actually not a problem for most scenarios. That means eight PCIe lanes instead of sixteen lanes. If you use the 2nd or 3rd M.2 slot (even for a PCIe 3.0 device), it causes the primary PCIe slot to go from PCIe 4.0 x16 down to x8. The B550 AORUS MASTER has three M.2 PCIe 4.0 slots that are all connected to the CPU.

Crystal disk mark ssd test