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Compare SANDISK Optimus GX PRO 850X 8TB Heatsink vs Western Digital SN850 500GB

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  3. SANDISK Optimus GX PRO 850X 8TB Heatsink 🆚 Western Digital SN850 500GB
SANDISK Optimus GX PRO 850X 8TB Heatsink and Western Digital SN850 500GB are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity.
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SANDISK Optimus GX PRO 850X 8TB NVMe Heatsink PCIe Gen4 x4 M.2-2280 SDSP81800TAH-000E0
SANDISK Optimus GX PRO 850X 8TB Heatsink
Western Digital BLACK SN850 500GB NVMe Gen4 PCIe M.2 2280 WDS500G1X0E
Western Digital SN850 500GB
Prices
(Change region)
In Stock
Free shipping
$2,699.99
Prices
(Change region)
Out of Stock
$59.99
Out of Stock
Free shipping
$84.99
Out of Stock
Free shipping
$99.99
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Brand
SanDisk
Brand
Western Digital
Model
  • SDSP81800TAH-000E0
  • SDSP81800TAH
Model
WDS500G1X0E
Release Date
📅 February 2026
Release Date
📅 October 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Performance (Charts)
n/a
Performance (Charts)
51st / 1746
Effective Value
-
Effective Value
13th / 336
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.34
Price/GB
$0.12
GB/$1
2.96
GB/$1
8.33
Series
-
Series
BLACK SN850 NVMe
Capacity
8000 GB
Capacity
500 GB
Interface
PCIe Gen4 x4
Interface
PCIe Gen4 x4
NVME
Yes
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
SSD Controller
-
SSD Controller
WD/SanDisk NVMe G2
NAND Flash Type
-
NAND Flash Type
3D NAND
Max Sequential Read
-
Max Sequential Read
Up to 7000 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 4100 MB/s
MTBF
-
MTBF
1.75M Hours
-

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 8TB Heatsink:

  • Newer Product, it was released around 5 years later
  • More Capacity (+7500 GB available)

Buy now

Reasons to buy the Western Digital SN850 500GB:

  • 94% cheaper, you can save $2,543.48

Buy now

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