SANDISK Optimus GX PRO 850X 1TB vs Extreme PRO 500GB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB and SanDisk Extreme PRO 500GB are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity and Interface.

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SANDISK Optimus GX PRO 850X 1TB	SanDisk Extreme PRO 500GB
Prices (Change region) In Stock $329.99 In Stock Free shipping $329.99 In Stock $329.99 In Stock Free shipping $329.99 Out of Stock Free shipping $387.88 Show 2 more offers	Prices (Change region) Out of Stock $27.99 Out of Stock Free shipping $79.99 Out of Stock Free shipping $128.39 Out of Stock Free shipping $198.99 - Buy now Show 2 more offers
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Brand SanDisk	Brand SanDisk
Model SDSP81100TAN-000E0 SDSP81100TAN	Model SDSSDXPM2-500G-G25
Release Date 📅 February 2026	Release Date 📅 July 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
Performance (Charts) n/a	Performance (Charts) 108th / 1746
Effective Value -	Effective Value 18th / 336
Price history View Details ►	Price history View Details ►
Price/GB $0.33	Price/GB $0.06
GB/$1 3.03	GB/$1 17.86
Series -	Series Extreme Pro
Capacity 1000 GB	Capacity 500 GB
Interface PCIe Gen4 x4	Interface PCIe Gen3 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type -	NAND Flash Type 3D NAND
Max Sequential Read -	Max Sequential Read Up to 3400 MB/s
Max Sequential Write -	Max Sequential Write Up to 2500 MB/s