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

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

Western Digital
99 Overall Score
vs
SanDisk SSD Plus 480GB SATA III 2.5"

SanDisk SSD Plus 480GB SATA III 2.5"

SanDisk
41 Overall Score

What Buyers Say

Western Digital WD_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

SanDisk SSD Plus 480GB SATA III 2.5"

82 out of 100 high confidence 57 reviews

The SanDisk SSD PLUS is widely praised as a fast, reliable, and affordable upgrade for older laptops and desktops, with many users reporting dramatic boot time and application load improvements. While most reviews are positive, a few critical voices mention short lifespan and poor support, and some note the plastic casing feels cheap. Overall, it's seen as a great value for basic computing needs.

Pros
  • Fast boot times
  • Affordable price
  • Easy installation
  • Reliable performance
  • Good for older laptops
Cons
  • Short lifespan in some units
  • Poor customer support
  • Cheap plastic casing
  • Not for large media storage
  • Slower than NVMe
👍 Performance 25
👍 Value for money 15
🤔 Reliability 12
👍 Ease of installation 10
👎 Build quality 4
👎 Customer support 2

Scores

Budget
Western Digital
96
SanDisk
52
Console
Western Digital
95
SanDisk
14
Gaming
Western Digital
95
SanDisk
28
Workstation
Western Digital
94
SanDisk
40
Laptop
Western Digital
82
SanDisk
41
Portable
Western Digital
25
SanDisk
11

Specifications

Western Digital WD_BLACK SN850XSanDisk SSD Plus
Drive
Capacity
4,000
480
Form FactorM.2 22802.5"
InterfacePCIe 4.0 x4SATA III
ProtocolNVMeSATA
PCIe Generation4★—
External✗✗
Performance
Sequential Read (MB/s)
7,300
535
Sequential Write (MB/s)
6,600
445
Random Read (IOPS)
1,200,000
No data
Random Write (IOPS)
1,100,000
No data
Hardware
NANDTLCSLC★
DRAM Cache✓✓
Reliability
Endurance (TBW)
2,400
No data
MTBF (hours)
1,750,000
No data
Warranty (years)33
Features
Heatsink✓★—
Hardware Encryption—✗

Pros & Cons

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

  • Strong social proof (96th percentile)96th %ile
  • Strong random (95th percentile)95th %ile
  • Strong user sentiment (95th percentile)95th %ile
  • Strong feature (94th percentile)94th %ile

SanDisk SSD Plus 480GB SATA III 2.5"

  • Strong feature (94th percentile)94th %ile
  • Strong social proof (88th percentile)88th %ile
  • Below average speed (18th percentile)18th %ile
  • Below average random (22nd percentile)
  • Below average capacity (23rd percentile)

Verdict

★ Winner: Western Digital WD_BLACK SN850X

Scores 99 overall, wins 6 of 6 usage categories and 9 of 17 specs.

Western Digital WD_BLACK SN850X Better at:

BudgetGamingLaptopConsolePortableWorkstation