Drive SAMSUNG MZVLB256HAHQ-000L2 256GB hdparm -t /dev/nvme0n1 Timing buffered disk reads: 2278 MB in 3.00 seconds = 758.94 MB/sec Drive Samsung SSD 870 1TB hdparm -t /dev/sda Timing buffered disk reads: 1020 MB in 3.00 seconds = 339.99 MB/sec