WD Black 250GB WDS250G2X0C vs SANDISK Optimus GX PRO 850X 1TB Heatsink SSD Comparison

WD Black 250GB WDS250G2X0C and SANDISK Optimus GX PRO 850X 1TB Heatsink are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface, NAND Flash Type and Max Sequential Read.

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WD Black 250GB WDS250G2X0C	SANDISK Optimus GX PRO 850X 1TB Heatsink
Prices (Change region) Out of Stock Free shipping $65.00 Out of Stock $69.99 - Buy now	Prices (Change region) In Stock $349.99 In Stock Free shipping $349.99 Out of Stock Free shipping $349.99 Out of Stock Free shipping $411.09 Show 1 more offers
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Brand Western Digital	Brand SanDisk
Model WDS250G2X0C	Model SDSP81100TAH-000E0 SDSP81100TAH
Release Date 📅 August 2018	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (33 reviews) Add a product review	User reviews Add a product review
Performance (Charts) 138th / 1746	Performance (Charts) n/a
Effective Value 109th / 336	Effective Value -
Price history View Details ►	Price history View Details ►
Price/GB $0.26	Price/GB $0.35
GB/$1 3.85	GB/$1 2.86
Series Black NVMe	Series Optimus GX PRO 850X
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
NAND Flash Type 3D NAND	NAND Flash Type 3D NAND TLC
Cache -	Cache No DRAM (SLC)
Max Sequential Read Up to 3000 MB/s	Max Sequential Read Up to 7300 MB/s
Max Sequential Write Up to 1600 MB/s	Max Sequential Write Up to 6300 MB/s
MTBF 1,752,000 hours	MTBF 1,750,000 hours