Western Digital WD Black SN850X

Western Digital WD Black SN850X

Western Digital
99 Overall Score
vs
SanDisk SSD

SanDisk SSD

SanDisk
55 Overall Score

What Buyers Say

Western Digital WD Black SN850X

92 out of 100 medium confidence 17 reviews

The WD Black SN850X is highly praised for its blazing speed, reliability, and value, often compared favorably to pricier alternatives like Samsung and Solidigm. Users report excellent performance in gaming (especially PS5) and general use, with a few concerns about potential issues mitigated by firmware updates. Overall, it's seen as a top-tier NVMe drive, especially when on sale.

Pros
  • Blazing fast speeds
  • Excellent value for money
  • Reliable high-capacity storage
  • Great for PS5
  • Easy installation
Cons
  • Potential firmware issues
  • No heatsink included
  • Pricey when not on sale
👍 Speed 6
👍 Value for money 4
👍 Reliability 4
👍 Ps5 compatibility 3
👎 Firmware concerns 2
👍 Installation 2

SanDisk SSD

No customer feedback yet

Scores

Budget
Western Digital
96
SanDisk
75
Console
Western Digital
95
SanDisk
30
Gaming
Western Digital
95
SanDisk
59
Workstation
Western Digital
94
SanDisk
50
Laptop
Western Digital
82
SanDisk
67
Portable
Western Digital
25
SanDisk
17

Specifications

Western Digital WD Black SN850XSanDisk SSD
Drive
Capacity
4,000
2,000
Form FactorM.2 2280M.2
InterfacePCIe 4.0 x4PCIe 3.0
ProtocolNVMeNVMe
PCIe Generation4★3
External✗✗
Performance
Sequential Read (MB/s)
7,300
3,200
Sequential Write (MB/s)
6,600
3,000
Random Read (IOPS)
1,200,000
No data
Random Write (IOPS)
1,100,000
No data
Hardware
NANDTLC★—
DRAM Cache✓★—
Reliability
Endurance (TBW)
2,400
No data
MTBF (hours)
1,750,000
No data
Warranty (years)3★—
Features
Heatsink✓★—

Pros & Cons

Western Digital WD Black SN850X

  • Strong social proof (96th percentile)96th %ile
  • Strong random (95th percentile)95th %ile
  • Strong user sentiment (95th percentile)95th %ile
  • Strong feature (94th percentile)94th %ile

SanDisk SSD

  • Strong social proof (88th percentile)88th %ile
  • Strong capacity (78th percentile)
  • Below average feature (14th percentile)14th %ile
  • Below average endurance (14th percentile)14th %ile

Verdict

★ Winner: Western Digital WD Black SN850X

Scores 99 overall, wins 6 of 6 usage categories and 12 of 16 specs.

Western Digital WD Black SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation