Compare Solid State Drives

Compare Western Digital WD Blue SN5000 4TB vs WD_BLACK SN8100 4TB

Western Digital WD Blue SN5000 4TB and Western Digital WD_BLACK SN8100 4TB are both solid state drives with the same Capacity (4000 GB), Form Factor (M.2-2280) and MTBF (1,750,000 hours). The main differences are in Interface, Max Sequential Read and Max Sequential Write.
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Prices
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In Stock
$464.00
Last updated 21 minutes ago.
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In Stock
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Prices
(Change region)
In Stock
Free shipping
In Stock
$789.99
Last updated 22 minutes ago.
In Stock
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Brand
Western Digital
Brand
Western Digital
Model
  • WDS400T4B0E
  • WDBS3F0040BNC-WRSN
Model
  • WDS400T1X0M
  • WDS400T1X0M-00CMT0
Release Date
-
Release Date
📅 May 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Performance (Charts)
n/a
Performance (Charts)
1st / 1746
Effective Value
-
Effective Value
84th / 336
Price history
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Price history
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Price/GB
$0.06
Price/GB
$0.20
GB/$1
16.67
GB/$1
5.06
Series
Blue SN5000 NVMe
Series
-
Capacity
4000 GB
Capacity
4000 GB
Interface
PCIe Gen4 x4
Interface
PCIe Gen5 x4
NVME
Yes
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
Max Sequential Read
Up to 5500 MB/s
Max Sequential Read
Up to 14900 MB/s
Max Sequential Write
Up to 5000 MB/s
Max Sequential Write
Up to 14000 MB/s
MTBF
1,750,000 hours
MTBF
1,750,000 Hours

Comparison and key differences summary

Reasons to buy the Western Digital WD Blue SN5000 4TB:

  • 41% cheaper, you can save $325.99

Buy now

Reasons to buy the Western Digital WD_BLACK SN8100 4TB:

  • Newer interface (PCIe Gen5 x4)

Buy now

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