Crucial’s P510 SSD Affordable Storage Review

“Phison bills as the “world’s first DRAM-less PCIe Gen5 SSD controller IC solution that pushes for true PCIe Gen5 bandwidth.” So there’s your caveat on the affordable angle—it attempts to get there by eschewing DRAM for a cheaper price.

It’s still fast, though. In this case, Micron is touting sequential read and write speeds of up to 11,000MB/s and 9,550MB/s, respectively. Those figures are short of the theoretical maximum bandwidth of 15.75GB/s for PCIe 5.0 SSDs, but the speeds still blows way past the theoretical maximum bandwidth of 7.88GB/s for PCIe 4.0 SSDs. We say “theoretical maximum” because overhead and other factors prevent storage from fully saturating the PCIe bus.”- hothardware.com

Source: hothardware.com