SANDISK Optimus GX PRO 850X 1TB Heatsink vs ADATA XPG MARS 980 BLADE 1TB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB Heatsink and ADATA XPG MARS 980 BLADE 1TB are both solid state drives with the same Capacity (1000 GB) and Form Factor (M.2-2280). The main differences are in Interface, NAND Flash Type, Max Sequential Read and Max Sequential Write.

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SANDISK Optimus GX PRO 850X 1TB Heatsink	ADATA XPG MARS 980 BLADE 1TB
Prices (Change region) In Stock $349.99 In Stock Free shipping $349.99 Out of Stock Free shipping $349.99 Out of Stock Free shipping $411.09 Show 1 more offers	Prices (Change region) In Stock $179.99 In Stock Free shipping $179.99
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Brand SanDisk	Brand ADATA
Model SDSP81100TAH-000E0 SDSP81100TAH	Model SMAR-980B-1TCS
Release Date 📅 February 2026	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (6 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.35	Price/GB $0.18
GB/$1 2.86	GB/$1 5.56
Series Optimus GX PRO 850X	Series BLADE
Capacity 1000 GB	Capacity 1000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen5 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller -	SSD Controller SMI SM2508
NAND Flash Type 3D NAND TLC	NAND Flash Type 3D NAND
Cache No DRAM (SLC)	Cache -
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 14000 MB/s
Max Sequential Write Up to 6300 MB/s	Max Sequential Write Up to 10000 MB/s
MTBF 1,750,000 hours	MTBF -