Western Digital BLACK SN850X 1TB + Heatsink vs SANDISK Optimus GX 7100M 2TB SSD Comparison

Western Digital BLACK SN850X 1TB + Heatsink and SANDISK Optimus GX 7100M 2TB are both solid state drives with the same Interface (PCIe Gen4 x4). The main differences are in Capacity, Form Factor, NAND Flash Type and Max Sequential Read.

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Western Digital BLACK SN850X 1TB + Heatsink	SANDISK Optimus GX 7100M 2TB
Prices (Change region) In Stock $249.99 Last updated 3 minutes ago. Out of Stock $259.99	Prices (Change region) In Stock Free shipping $599.99 In Stock $599.99 Last updated 7 minutes ago. In Stock Free shipping $599.99 Out of Stock Free shipping $816.16 Show 1 more offers
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Brand Western Digital	Brand SanDisk
Model WDS100T2XHE	Model SDSP71200TAT-000E0 SDSP71200TAT
Release Date 📅 August 2022	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
Performance (Charts) 39th / 1746	Performance (Charts) n/a
Effective Value 19th / 336	Effective Value -
Price history View Details ►	Price history View Details ►
Price/GB $0.25	Price/GB $0.30
GB/$1 4	GB/$1 3.33
Series BLACK SN850X NVMe	Series Optimus GX 7100M
Capacity 1000 GB	Capacity 2000 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2230
SSD Controller 20-82-20035-B1	SSD Controller -
NAND Flash Type BiCS5 112-layer TLC	NAND Flash Type 3D NAND TLC
Max Sequential Read Up to 7300 MB/s	Max Sequential Read Up to 7250 MB/s
Max Sequential Write Up to 6300 MB/s	Max Sequential Write Up to 6900 MB/s
MTBF 1.75M Hours	MTBF 1,750,000 hours