WD_BLACK 4TB AN1500 vs SANDISK Optimus GX PRO 850X 1TB SSD Comparison

WD_BLACK 4TB AN1500 and SANDISK Optimus GX PRO 850X 1TB are both solid state drives with the same Capacity (1000 GB). The main differences are in Interface, Form Factor, Max Sequential Read and Max Sequential Write.

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WD_BLACK 4TB AN1500	SANDISK Optimus GX PRO 850X 1TB
Prices (Change region) Out of Stock $139.99 Out of Stock Free shipping $172.99 Out of Stock Free shipping $249.99 Out of Stock Free shipping $910.99 - Buy now Show 2 more offers	Prices (Change region) In Stock $269.99 In Stock Free shipping $269.99 In Stock $269.99 Out of Stock Free shipping $269.99 Out of Stock + $9.10 Shipping $301.69 Show 2 more offers
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Brand Western Digital	Brand SanDisk
Model WDS100T1X0L-00AUJ0 WDS100T1X0L	Model SDSP81100TAN-000E0 SDSP81100TAN
Release Date 📅 October 2020	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (15 reviews) Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.14	Price/GB $0.27
GB/$1 7.14	GB/$1 3.7
Series BLACK AN1500 NVMe	Series Optimus GX PRO 850X
Capacity 1000 GB	Capacity 1000 GB
Interface PCIe Gen3 x8	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor PCIe	Form Factor M.2-2280
NAND Flash Type -	NAND Flash Type 3D NAND TLC
Max Sequential Read Up to 6500 MB/s	Max Sequential Read Up to 7300 MB/s
Max Sequential Write Up to 4100 MB/s	Max Sequential Write Up to 6300 MB/s
MTBF 1.75M hours	MTBF 1,750,000 hours