Western Digital WD_BLACK SN850X

Western Digital WD_BLACK SN850X

Western Digital
95 Overall Score
vs
ADATA Legend 860

ADATA Legend 860

ADATA
66 Overall Score

Scores

Laptop
Western Digital
99
ADATA
57
Budget
Western Digital
98
ADATA
64
Gaming
Western Digital
95
ADATA
62
Workstation
Western Digital
95
ADATA
64
Console
Western Digital
91
ADATA
64
Portable
Western Digital
26
ADATA
17

Specifications

Western Digital WD_BLACK SN850XADATA Legend 860
Drive
Capacity
4,000
1,000
Form FactorM.2 2280M.2 2280
InterfacePCIe 4.0 x4PCIe 4.0 x4
ProtocolNVMeNVMe
PCIe Generation44
External✗✗
Performance
Sequential Read (MB/s)
7,300
6,000
Sequential Write (MB/s)
6,600
5,000
Random Read (IOPS)
1,200,000
No data
Random Write (IOPS)
1,100,000
No data
Hardware
NANDTLCTLC
DRAM Cache✓★✗
ControllerWD 20-82-20035-B1SMI SM2264
Reliability
Endurance (TBW)
2,400
640
MTBF (hours)
1,750,000
2,000,000
Warranty (years)5★3
Features
Heatsink✗✓★
Hardware Encryption✗✓★

Pros & Cons

Western Digital WD_BLACK SN850X

  • Strong social proof (100th percentile)100th %ile
  • Strong random (95th percentile)95th %ile
  • Strong capacity (93rd percentile)93rd %ile
  • Strong feature (89th percentile)89th %ile

ADATA Legend 860

  • Strong feature (87th percentile)87th %ile
  • Strong endurance (81st percentile)81st %ile
  • Strong speed (77th percentile)
  • Below average social proof (12th percentile)12th %ile

Pricing

ADATA Legend 860 is CA$780 cheaper (4.5x less).

Western Digital WD_BLACK SN850X0.095score per dollar
vs
ADATA Legend 8600.302score per dollar

ADATA Legend 860 offers 3.2x better value for money

Verdict

★ Winner: Western Digital WD_BLACK SN850X

Scores 95 overall, wins 6 of 6 usage categories and 8 of 18 specs.

Western Digital WD_BLACK SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation

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