Silicon Power UD80 250GB vs SANDISK Optimus GX PRO 850X 1TB SSD Comparison

Silicon Power UD80 250GB and SANDISK Optimus GX PRO 850X 1TB 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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Silicon Power UD80 250GB	SANDISK Optimus GX PRO 850X 1TB
Prices (Change region) There are no offers available in your selected region. Other merchants are available in another region. Out of Stock Free shipping €69.99 Out of Stock Free shipping €79.79 In Stock Free shipping €89.99 Out of Stock Free shipping €96.22 Show 1 more offers	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
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Brand Silicon Power	Brand SanDisk
Model SP250GBP34UD8005	Model SDSP81100TAN-000E0 SDSP81100TAN
Release Date -	Release Date 📅 February 2026
* 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 -	Price/GB $0.33
GB/$1 -	GB/$1 3.03
Capacity 250 GB	Capacity 1000 GB
Interface PCIe Gen3 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280