SANDISK Optimus GX PRO 850X 4TB vs CORSAIR MP700 PRO XT 4TB SSD Comparison

SANDISK Optimus GX PRO 850X 4TB and CORSAIR MP700 PRO XT 4TB are both solid state drives with the same Capacity (4000 GB), Form Factor (M.2-2280) and NAND Flash Type (3D NAND TLC). The main differences are in Interface, Max Sequential Read, Max Sequential Write and MTBF.

Save comparison

SANDISK Optimus GX PRO 850X 4TB	CORSAIR MP700 PRO XT 4TB
Prices (Change region) In Stock $999.99 In Stock $999.99 In Stock Free shipping $1,329.99 In Stock Free shipping $1,329.99 Out of Stock Free shipping $1,517.50 Show 2 more offers	Prices (Change region) Out of Stock Free shipping $459.99 Out of Stock $487.99 Out of Stock Free shipping $779.99 Out of Stock Free shipping $779.99 - Buy now Show 2 more offers
* Pangoly may earn a commission when you use one of the links to make a purchase. (Disclosure) * Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand SanDisk	Brand Corsair
Model SDSP81400TAN-000E0 SDSP81400TAN	Model CSSD-F40GBMP700PXNH
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 Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.25	Price/GB $0.11
GB/$1 4	GB/$1 8.7
Series Optimus GX PRO 850X	Series MP700 PRO XT
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
SSD Controller -	SSD Controller PS5028-E28
NAND Flash Type 3D NAND TLC	NAND Flash Type 3D NAND TLC
Cache -	Cache DRAM Cache
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 14,900MB/s
Max Sequential Write Up to 6600 MB/s	Max Sequential Write Up to 14,400MB/s
MTBF 1,750,000 hours	MTBF 1,500,000 hours