Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280

Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280

Western Digital
94 Overall Score
vs
Lexar NQ780 2TB PCIe 4.0 x4 NVMe M.2 2280

Lexar NQ780 2TB PCIe 4.0 x4 NVMe M.2 2280

Lexar
73 Overall Score

Scores

Console
Western Digital
95
Lexar
70
Gaming
Western Digital
95
Lexar
72
Workstation
Western Digital
94
Lexar
67
Budget
Western Digital
81
Lexar
73
Laptop
Western Digital
81
Lexar
78
Portable
Western Digital
25
Lexar
19

Specifications

Western Digital WD_BLACK SN850XLexar NQ780
Drive
Capacity
4,000
2,000
Form FactorM.2 2280M.2 2280
InterfacePCIe 4.0 x4PCIe 4.0 x4
ProtocolNVMeNVMe
PCIe Generation44
External✗✗
Performance
Sequential Read (MB/s)
7,300
6,500
Sequential Write (MB/s)
6,600
7,400
Random Read (IOPS)
1,200,000
1,000,000
Random Write (IOPS)
1,100,000
900,000
Hardware
NANDTLCTLC
DRAM Cache✓★✗
Reliability
Endurance (TBW)
2,400
No data
MTBF (hours)
1,750,000
No data
Warranty (years)35★
Features
Heatsink✓★✗

Pros & Cons

Western Digital WD_BLACK SN850X 4TB PCIe 4.0 x4 NVMe M.2 2280

  • Strong random (96th percentile)96th %ile
  • Strong social proof (95th percentile)95th %ile
  • Strong feature (94th percentile)94th %ile
  • Strong capacity (93rd percentile)93rd %ile
  • Below average affordability (9th percentile)9th %ile

Lexar NQ780 2TB PCIe 4.0 x4 NVMe M.2 2280

  • Strong random (93rd percentile)93rd %ile
  • Strong speed (85th percentile)85th %ile
  • Strong capacity (79th percentile)
  • Below average affordability (28th percentile)

Verdict

★ Winner: Western Digital WD_BLACK SN850X

Scores 94 overall, wins 6 of 6 usage categories and 8 of 16 specs.

Western Digital WD_BLACK SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation