NVMe Storage Comparisons
How does NVMe stack up against SATA SSDs, spinning disks, object storage, and legacy network protocols? Each comparison covers latency, IOPS, throughput, cost, and the right workload for each technology.
NVMe vs SATA SSD
Same NAND flash, different interfaces. NVMe delivers 5–10× higher IOPS and 4× lower latency than SATA III over PCIe lanes that bypass the legacy AHCI bottleneck.
NVMe vs HDD
NVMe SSDs are 1000× faster than spinning disks for random I/O. HDDs retain a cost advantage for sequential bulk storage — here's when each makes sense.
NVMe vs Object Storage
Block storage and object storage solve different problems. NVMe excels at low-latency random I/O; S3-compatible object storage scales infinitely for unstructured data.
NVMe-oF vs iSCSI
Both protocols deliver networked block storage over Ethernet. NVMe-oF eliminates the legacy SCSI command translation overhead, cutting latency from 300µs to under 40µs.
NVMe/TCP vs NVMe/RDMA comparison — for a deep-dive on transport options within NVMe over Fabrics, see nvme-tcp.com →