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

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

Western Digital
100 Overall Score
vs
Solidigm 3.84TB SSD SATA III 2.5"

Solidigm 3.84TB SSD SATA III 2.5"

Solidigm
56 Overall Score

What Buyers Say

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

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

Solidigm 3.84TB SSD SATA III 2.5"

No customer feedback yet

Scores

Laptop
Western Digital
97
Solidigm
52
Budget
Western Digital
97
Solidigm
69
Workstation
Western Digital
95
Solidigm
56
Gaming
Western Digital
95
Solidigm
43
Console
Western Digital
91
Solidigm
21
Portable
Western Digital
25
Solidigm
15

Specifications

Western Digital Black SN850XSolidigm 3.84TB SSD
Drive
Capacity
4,000
3,840
Form FactorM.2 22802.5"
InterfacePCIe 4.0 x4SATA III
ProtocolNVMeSATA
PCIe Generation4★—
External✗✗
Performance
Sequential Read (MB/s)
7,300
550
Sequential Write (MB/s)
6,600
510
Random Read (IOPS)
1,200,000
No data
Random Write (IOPS)
1,100,000
No data
Hardware
NANDTLC★—
DRAM Cache✓★—
ControllerWD 20-82-20035-B1—
Reliability
Endurance (TBW)
2,400
35,100
MTBF (hours)
1,750,000
No data
Warranty (years)55
Features
Heatsink✗—
Hardware Encryption✗—

Pros & Cons

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

  • Strong random (95th percentile)95th %ile
  • Strong social proof (95th percentile)95th %ile
  • Strong user sentiment (95th percentile)95th %ile
  • Strong capacity (93rd percentile)93rd %ile

Solidigm 3.84TB SSD SATA III 2.5"

  • Strong endurance (100th percentile)100th %ile
  • Strong capacity (88th percentile)88th %ile
  • Below average feature (14th percentile)14th %ile
  • Below average random (22nd percentile)
  • Below average speed (32nd percentile)

Verdict

★ Winner: Western Digital Black SN850X

Scores 100 overall, wins 6 of 6 usage categories and 9 of 18 specs.

Western Digital Black SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation