SANDISK Optimus GX PRO 850X 1TB Heatsink vs Solidigm P44 Pro 2TB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB Heatsink and Solidigm P44 Pro 2TB are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity, Max Sequential Read and Max Sequential Write.

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SANDISK Optimus GX PRO 850X 1TB Heatsink	Solidigm P44 Pro 2TB
Prices (Change region) In Stock Free shipping $349.99 Out of Stock Free shipping $349.99 In Stock Free shipping $497.21	Prices (Change region) Out of Stock Free shipping $174.99 Out of Stock + $5.49 Shipping $185.49 Out of Stock Free shipping $229.99 Out of Stock Free shipping $309.50 Show 1 more offers
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Brand SanDisk	Brand Solidigm
Model SDSP81100TAH-000E0 SDSP81100TAH	Model SSDPFKKW020X7X1
Release Date 📅 February 2026	Release Date 📅 October 2022
* 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 $0.35	Price/GB $0.09
GB/$1 2.86	GB/$1 11.43
Series Optimus GX PRO 850X	Series P44 Pro
Capacity 1000 GB	Capacity 2000 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 3D NAND TLC	NAND Flash Type -
Cache No DRAM (SLC)	Cache -
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 7000 MB/s
Max Sequential Write Up to 6300 MB/s	Max Sequential Write Up to 6500 MB/s
MTBF 1,750,000 hours	MTBF -