SANDISK Optimus GX PRO 850X 1TB vs WD Blue 3D NAND 1TB SATA SSD Comparison

SANDISK Optimus GX PRO 850X 1TB and WD Blue 3D NAND 1TB SATA are both solid state drives with the same Capacity (1000 GB). The main differences are in Interface, NVME, Form Factor and NAND Flash Type.

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SANDISK Optimus GX PRO 850X 1TB	WD Blue 3D NAND 1TB SATA
Prices (Change region) In Stock Free shipping $294.99 In Stock $294.99 In Stock $329.99 In Stock Free shipping $329.99 Out of Stock Free shipping $387.88 Show 2 more offers	Prices (Change region) In Stock $289.99 Last updated 38 minutes ago.
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Brand SanDisk	Brand Western Digital
Model SDSP81100TAN-000E0 SDSP81100TAN	Model WDS100T2B0A
Release Date 📅 February 2026	Release Date 📅 July 2017
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (290 reviews) Add a product review
Performance (Charts) n/a	Performance (Charts) 235th / 1746
Effective Value -	Effective Value 200th / 336
Price history View Details ►	Price history View Details ►
Price/GB $0.29	Price/GB $0.29
GB/$1 3.39	GB/$1 3.45
Series Optimus GX PRO 850X	Series Blue
Capacity 1000 GB	Capacity 1000 GB
Interface PCIe Gen4 x4	Interface SATA 6 Gb/s
NVME Yes	NVME No
Form Factor M.2-2280	Form Factor 2.5"
NAND Flash Type 3D NAND TLC	NAND Flash Type 3D NAND
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 560 MB/s
Max Sequential Write Up to 6300 MB/s	Max Sequential Write Up to 530 MB/s
MTBF 1,750,000 hours	MTBF Up to 1.75M hours