SANDISK Optimus GX PRO 850X 1TB vs Silicon Power UD85 250GB SSD Comparison

SANDISK Optimus GX PRO 850X 1TB and Silicon Power UD85 250GB 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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SANDISK Optimus GX PRO 850X 1TB	Silicon Power UD85 250GB
Prices (Change region) In Stock $329.99 In Stock Free shipping $329.99 In Stock Free shipping $329.99 Out of Stock $329.99 Out of Stock Free shipping $387.88 Show 2 more offers	Prices (Change region) - Buy now
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Brand SanDisk	Brand Silicon Power
Model SDSP81100TAN-000E0 SDSP81100TAN	Model SP250GBP44UD8505
Release Date 📅 February 2026	Release Date 📅 January 2023
* 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 $0.33	Price/GB -
GB/$1 3.03	GB/$1 -
Capacity 1000 GB	Capacity 250 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280