Western Digital BLACK SN850X

Western Digital BLACK SN850X

Western Digital
82 Overall Score
vs
fanxiang S500 Pro

fanxiang S500 Pro

fanxiang
53 Overall Score

What Buyers Say

Western Digital BLACK SN850X

No customer feedback yet

fanxiang S500 Pro

82 out of 100 medium confidence 12 reviews

The Fanxiang S500 Pro SSD generally receives high praise for its speed, reliability, and value for money, with many users noting it performs well in laptops, desktops, and even external enclosures. However, a few users encountered issues such as a drive not initializing or concerns about quality control and customer support, which slightly dampen the overall sentiment.

Pros
  • Fast read/write speeds
  • Good value for money
  • Reliable performance
  • Easy installation
  • Compatible with various systems
Cons
  • Occasional drive initialization failure
  • Quality control variability
  • Limited customer support
  • No dedicated DRAM (HMB cache)
  • Potential slowdowns during sustained transfers
👍 Performance 8
👍 Value for money 6
👍 Reliability 7
👍 Ease of installation 5
👍 Compatibility 5
👎 Quality control 3

Scores

Laptop
Western Digital
87
fanxiang
53
Budget
Western Digital
84
fanxiang
45
Gaming
Western Digital
78
fanxiang
40
Console
Western Digital
75
fanxiang
20
Workstation
Western Digital
75
fanxiang
49
Portable
Western Digital
21
fanxiang
12

Specifications

Western Digital BLACK SN850Xfanxiang S500 Pro
Drive
Capacity
1,000
256
Form FactorM.2 2280M.2 2280
InterfacePCIe 4.0 x4PCIe 3.0 x4
ProtocolNVMeNVMe
PCIe Generation4★3
External✗✗
Performance
Sequential Read (MB/s)
7,300
3,000
Sequential Write (MB/s)
6,350
2,000
Random Read (IOPS)
800,000
No data
Random Write (IOPS)
1,100,000
No data
Hardware
NANDTLCTLC
DRAM Cache✗✗
Reliability
Endurance (TBW)
600
200
MTBF (hours)
1,750,000
No data
Warranty (years)5★3
Features
Heatsink✗✗
Hardware Encryption✗—

Pros & Cons

Western Digital BLACK SN850X

  • Strong social proof (100th percentile)100th %ile
  • Strong random (93rd percentile)93rd %ile
  • Strong endurance (87th percentile)87th %ile
  • Strong speed (86th percentile)86th %ile

fanxiang S500 Pro

  • Strong endurance (84th percentile)84th %ile
  • Strong social proof (79th percentile)
  • Below average capacity (18th percentile)18th %ile

Verdict

★ Winner: Western Digital BLACK SN850X

Scores 82 overall, wins 6 of 6 usage categories and 9 of 17 specs.

Western Digital BLACK SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation