WD WD Black SN770 1TB vs WD WD Black SN850X 2TB
Affiliate disclosure: As an Amazon Associate, PCTalkTalk Compare earns from qualifying purchases. We may also earn a commission from Newegg and B&H Photo Video links, at no extra cost to you.
Key differences
- •WD WD Black SN850X 2TB has higher Capacity (2000 GB vs 1000 GB)
- •WD WD Black SN850X 2TB has higher Endurance (TBW) (1,200 vs 600)
- •WD WD Black SN850X 2TB has higher Sequential read (7,300 vs 5,150)
- •WD WD Black SN850X 2TB has higher Sequential write (6,300 vs 4,900)
Full spec comparison
Spec
WD WD Black SN770 1TB
WD WD Black SN850X 2TB
Performance
Capacity1000 GB2000 GB▲
InterfacePCIe 4.0 x4PCIe 4.0 x4
Form factorM.2 2280M.2 2280
ProtocolNVMe 1.4NVMe 1.4
Sequential read5,1507,300▲
Sequential write4,9006,300▲
Reliability
Endurance (TBW)6001,200▲
DRAM cacheNoYes
NAND type3D TLC3D TLC
Warranty5 years5 years