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
XPG BLADE 1TB PCIe 5.0 x4 NVMe M.2 2280

XPG BLADE 1TB PCIe 5.0 x4 NVMe M.2 2280

XPG
74 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

XPG BLADE 1TB PCIe 5.0 x4 NVMe M.2 2280

72 out of 100 low confidence 9 reviews

Users generally appreciate the SSD's performance and value for money, with one noting it's 'amazing for the price' and another praising its state-of-the-art technology. However, a significant issue was reported: the drive sometimes fails to be detected during bootup on certain motherboards, which is a major reliability concern. Overall, sentiment is mixed but leans positive due to strong performance and brand reputation.

Pros
  • Great value for money
  • Fast sequential speeds
  • Reliable brand reputation
  • Compatible with PS5
Cons
  • Boot detection issues
  • Disappointing benchmark scores
  • RMA hassle
👍 Performance 3
👍 Value for money 2
👎 Reliability 2
👍 Brand reputation 2
👍 Compatibility 2
👎 Benchmark scores 1

Scores

Laptop
Western Digital
97
XPG
62
Gaming
Western Digital
94
XPG
74
Workstation
Western Digital
94
XPG
80
Console
Western Digital
90
XPG
72
Budget
Western Digital
82
XPG
75
Portable
Western Digital
25
XPG
18

Specifications

Western Digital Black SN850XXPG BLADE
Drive
Capacity
4,000
1,000
Form FactorM.2 2280M.2 2280
InterfacePCIe 4.0 x4PCIe 5.0 x4
ProtocolNVMeNVMe
PCIe Generation45★
External✗✗
Performance
Sequential Read (MB/s)
7,300
14,000
Sequential Write (MB/s)
6,600
10,000
Random Read (IOPS)
1,200,000
1,600,000
Random Write (IOPS)
1,100,000
1,650,000
Hardware
NANDTLCTLC
DRAM Cache✓✓
ControllerWD 20-82-20035-B1SMI SM2508
Reliability
Endurance (TBW)
2,400
740
MTBF (hours)
1,750,000
No data
Warranty (years)5★3
Features
Heatsink✗✓★
Hardware Encryption✗✓★

Pros & Cons

Western Digital 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 user sentiment (95th percentile)95th %ile
  • Strong capacity (93rd percentile)93rd %ile
  • Below average affordability (11th percentile)11th %ile

XPG BLADE 1TB PCIe 5.0 x4 NVMe M.2 2280

  • Strong feature (100th percentile)100th %ile
  • Strong random (98th percentile)98th %ile
  • Strong speed (97th percentile)97th %ile
  • Strong endurance (82nd percentile)82nd %ile
  • Below average social proof (7th percentile)7th %ile
  • Below average user sentiment (29th percentile)

Verdict

★ Winner: Western Digital Black SN850X

Scores 100 overall, wins 6 of 6 usage categories and 4 of 18 specs.

Western Digital Black SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation