Western Digital WD_BLACK SN8100 8TB vs WD_BLACK SN770 500GB SSD Comparison

Western Digital WD_BLACK SN8100 8TB and WD_BLACK SN770 500GB are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface, Max Sequential Read and Max Sequential Write.

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Western Digital WD_BLACK SN8100 8TB	WD_BLACK SN770 500GB
Prices (Change region) In Stock Free shipping $1,899.99 In Stock $1,899.99 Out of Stock Free shipping $1,899.99 In Stock $4,546.61 Show 1 more offers	Prices (Change region) In Stock Free shipping $122.48
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Brand Western Digital	Brand Western Digital
Model WDS800T1X0M-00CMT0	Model WDS500G3X0E
Release Date 📅 October 2025	Release Date 📅 January 2022
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (27 reviews) Add a product review	User reviews ★★★★☆ (20 reviews) Add a product review
Price history View Details ►	Price history View Details ►
Price/GB $0.24	Price/GB $0.24
GB/$1 4.21	GB/$1 4.08
Series -	Series BLACK SN770 NVMe
Capacity 8000 GB	Capacity 500 GB
Interface PCIe Gen5 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller -	SSD Controller 20-82-10081-A1
NAND Flash Type -	NAND Flash Type 3D TLC BiCS5
Max Sequential Read Up to 14900 MB/s	Max Sequential Read Up to 5000 MB/s
Max Sequential Write Up to 13200 MB/s	Max Sequential Write Up to 4000 MB/s
MTBF 1,750,000 Hours	MTBF 1.75 Million hours