950 pro 512GB 先做到 2,500 MB/s read and 1,500 MB/s write， SM951Nvme 512GB 2,150 MB/s read and 1,550 MB/s write
950 pro 256GB 做到 2,200 MB/s read and 900 MB/s write, Read同SM951Nvme一樣. write仲慢少少, SM951有1260
"The 950 PRO will be available in 512 gigabyte (GB) and 256GB storage capacities. The 512GB version delivers sequential read/write speeds of up to 2,500 MB/s and 1,500 MB/s. Random read performance is up to 300,000 IOPS, with write speeds of up to 110,000 IOPS"