Western Digital WD_BLACK SN850X 1TB PCIe 4.0 x4 NVMe M.2 2280

Western Digital WD_BLACK SN850X 1TB PCIe 4.0 x4 NVMe M.2 2280

Western Digital
83 Overall Score
vs
Samsung 9100 PRO 8TB PCIe 5.0 x4 NVMe M.2 2280

Samsung 9100 PRO 8TB PCIe 5.0 x4 NVMe M.2 2280

Samsung
98 Overall Score

What Buyers Say

Western Digital WD_BLACK SN850X 1TB PCIe 4.0 x4 NVMe M.2 2280

No customer feedback yet

Samsung 9100 PRO 8TB PCIe 5.0 x4 NVMe M.2 2280

72 out of 100 low confidence 7 reviews

The Samsung 9100 Pro is generally praised for its blazing-fast speeds, especially in data transfers and large file loads, with several users noting it's noticeably faster than the 990 Pro. However, one verified buyer experienced a complete drive failure within two weeks, which is a significant concern. Most reviewers recommend it for high-end builds, but advise getting the heatsink version or a good aftermarket cooler.

Pros
  • Blazing fast speeds
  • Noticeably faster than 990 Pro
  • Great for data transfers
  • Quality product
  • Recommended for high-end builds
Cons
  • Potential drive failure within weeks
  • Requires heatsink for optimal performance
  • Speed difference not noticeable in daily tasks
👍 Speed performance 5
👎 Reliability 1
🤔 Cooling requirements 2
👍 Value for money 2
👍 Comparison to 990 pro 2
👍 Build quality 1

Scores

Workstation
Western Digital
83
Samsung
100
Console
Western Digital
82
Samsung
98
Gaming
Western Digital
83
Samsung
98
Budget
Western Digital
88
Samsung
72
Laptop
Western Digital
72
Samsung
75
Portable
Western Digital
21
Samsung
27

Specifications

Western Digital WD_BLACK SN850XSamsung 9100 PRO
Drive
Capacity
1,000
8,000
Form FactorM.2 2280M.2 2280
InterfacePCIe 4.0 x4PCIe 5.0 x4
ProtocolNVMeNVMe
PCIe Generation45★
External✗✗
Performance
Sequential Read (MB/s)
7,300
14,800
Sequential Write (MB/s)
6,300
13,400
Random Read (IOPS)
800,000
2,200,000
Random Write (IOPS)
1,100,000
2,600,000
Hardware
NANDTLCTLC
DRAM Cache✓✓
Controller—In-House Controller
Reliability
Endurance (TBW)
600
4,800
MTBF (hours)
1,750,000
1,500,000
Warranty (years)35★
Features
Heatsink✓✓
Hardware Encryption—✓★

Pros & Cons

Western Digital WD_BLACK SN850X 1TB PCIe 4.0 x4 NVMe M.2 2280

  • Strong social proof (95th percentile)95th %ile
  • Strong feature (94th percentile)94th %ile
  • Strong random (93rd percentile)93rd %ile
  • Strong speed (86th percentile)86th %ile

Samsung 9100 PRO 8TB PCIe 5.0 x4 NVMe M.2 2280

  • Strong random (100th percentile)100th %ile
  • Strong feature (100th percentile)100th %ile
  • Strong speed (99th percentile)99th %ile
  • Strong capacity (98th percentile)98th %ile
  • Below average affordability (2nd percentile)2nd %ile
  • Below average user sentiment (29th percentile)

Verdict

★ Winner: Samsung 9100 PRO

Scores 98 overall, wins 5 of 6 usage categories and 9 of 18 specs.

Western Digital WD_BLACK SN850X Better at:

Budget

Samsung 9100 PRO Better at:

GamingLaptopConsolePortableWorkstation