Silicon Power A55

Silicon Power A55

Silicon Power
39 Overall Score
vs
Western Digital BLACK SN850X

Western Digital BLACK SN850X

Western Digital
82 Overall Score

Scores

Laptop
Silicon Power
44
Western Digital
87
Budget
Silicon Power
45
Western Digital
84
Gaming
Silicon Power
26
Western Digital
78
Console
Silicon Power
14
Western Digital
75
Workstation
Silicon Power
34
Western Digital
75
Portable
Silicon Power
11
Western Digital
21

Specifications

Silicon Power A55Western Digital BLACK SN850X
Drive
Capacity
512
1,000
Form FactorM.2 2280M.2 2280
InterfaceSATA IIIPCIe 4.0 x4
ProtocolSATANVMe
PCIe Generation—4★
External✗✗
Performance
Sequential Read (MB/s)
560
7,300
Sequential Write (MB/s)
530
6,350
Random Read (IOPS)No data
800,000
Random Write (IOPS)No data
1,100,000
Hardware
NANDTLCTLC
DRAM Cache✗✗
Reliability
Endurance (TBW)No data
600
MTBF (hours)No data
1,750,000
Warranty (years)35★
Features
Heatsink✗✗
Hardware Encryption—✗

Pros & Cons

Silicon Power A55

  • Strong social proof (70th percentile)
  • Below average random (22nd percentile)
  • Below average capacity (34th percentile)

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

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