Samsung 990 PRO 4TB vs WD WD Black SN850X 4TB
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Key differences
- •Samsung 990 PRO 4TB has higher Sequential write (6,900 vs 6,600)
- •Samsung 990 PRO 4TB has higher Sequential read (7,450 vs 7,300)
Full spec comparison
Spec
Samsung 990 PRO 4TB
WD WD Black SN850X 4TB
Performance
Capacity4000 GB4000 GB
InterfacePCIe 4.0 x4PCIe 4.0 x4
Form factorM.2 2280M.2 2280
ProtocolNVMe 2.0NVMe 1.4
Sequential read7,450▲7,300
Sequential write6,900▲6,600
Reliability
Endurance (TBW)2,4002,400
DRAM cacheYesYes
NAND type3D TLC V-NAND3D TLC
Warranty5 years5 years