Western Digital WD_BLACK SN7100 500GB vs SANDISK Optimus GX PRO 850X 8TB Heatsink SSD Comparison

Western Digital WD_BLACK SN7100 500GB and SANDISK Optimus GX PRO 850X 8TB Heatsink 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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Western Digital WD_BLACK SN7100 500GB	SANDISK Optimus GX PRO 850X 8TB Heatsink
Prices (Change region) In Stock Free shipping $142.43 In Stock $189.95 Last updated 15 minutes ago. Out of Stock $222.64	Prices (Change region) In Stock Free shipping $2,699.99
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Brand Western Digital	Brand SanDisk
Model WDS500G4X0E-00CJA0 WDS500G4X0E	Model SDSP81800TAH-000E0 SDSP81800TAH
Release Date 📅 December 2024	Release Date 📅 February 2026
* 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
Price history View Details ►	Price history View Details ►
Price/GB $0.12	Price/GB $0.34
GB/$1 8.33	GB/$1 2.96
Series SN7100	Series -
Capacity 500 GB	Capacity 8000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type TLC 3D NAND	NAND Flash Type -
Max Sequential Read Up to 6800 MB/s	Max Sequential Read -
Max Sequential Write Up to 5800 MB/s	Max Sequential Write -
MTBF 1,750,000 hours	MTBF -