It's 7.2Gb/s per IO pin. Each DIMM is 64-bit (maybe extra for ECC), so it's for 57.6 GB/s for 1 DIMM. For a system with 8 channel memory, it's upward of 400GB/s.7.2Gb/s, 512GB
since when is RAM slower than an NVMe SSD? Or is it 0.9GB/s per module (I see 20 modules in the graphic)? Or is it 0.9GB/s per stack (8 stacks/module * 20 modules leads to 160 stacks*0.9GB/s/stack = 144GB/s)?