SANDISK Optimus GX PRO 850X 8TB Heatsink vs Western Digital WD_BLACK SN8100 2TB SSD Comparison

SANDISK Optimus GX PRO 850X 8TB Heatsink and Western Digital WD_BLACK SN8100 2TB are both solid state drives with the same Form Factor (M.2-2280) and MTBF (1,750,000 hours). The main differences are in Capacity, Interface, Max Sequential Read and Max Sequential Write.

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SANDISK Optimus GX PRO 850X 8TB Heatsink	Western Digital WD_BLACK SN8100 2TB
Prices (Change region) In Stock $2,410.99 In Stock Free shipping $2,410.99 In Stock Free shipping $2,410.99 In Stock Free shipping $2,766.24 Show 1 more offers	Prices (Change region) Out of Stock Free shipping $386.48 In Stock $438.50 Last updated 28 minutes ago. In Stock Free shipping $439.99 In Stock $449.99 In Stock $449.99 Show 2 more offers
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Brand SanDisk	Brand Western Digital
Model SDSP81800TAH-000E0 SDSP81800TAH	Model WDS200T1X0M WDS200T1X0M-00CMT0
Release Date 📅 February 2026	Release Date 📅 May 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Performance (Charts) n/a	Performance (Charts) 3rd / 1746
Effective Value -	Effective Value 5th / 336
Price history View Details ►	Price history View Details ►
Price/GB $0.30	Price/GB $0.19
GB/$1 3.32	GB/$1 5.17
Series Optimus GX PRO 850X	Series -
Capacity 8000 GB	Capacity 2000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen5 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type 3D NAND TLC	NAND Flash Type -
Max Sequential Read Up to 7200 MB/s	Max Sequential Read Up to 14900 MB/s
Max Sequential Write Up to 6600 MB/s	Max Sequential Write Up to 14000 MB/s
MTBF 1,750,000 hours	MTBF 1,750,000 Hours