WD_BLACK SN770 250GB vs WD_BLACK SN850 500GB + Heatsink SSD Comparison

WD_BLACK SN770 250GB and WD_BLACK SN850 500GB + Heatsink are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity, SSD Controller, NAND Flash Type and Max Sequential Read.

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WD_BLACK SN770 250GB	WD_BLACK SN850 500GB + Heatsink
Prices (Change region) In Stock Free shipping $99.48	Prices (Change region) In Stock Free shipping $299.00
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Brand Western Digital	Brand Western Digital
Model WDS250G3X0E	Model WDS500G1XHE
Release Date 📅 January 2022	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (20 reviews) Add a product review	User reviews ★★★★★ (22 reviews) Add a product review
Performance (Charts) 66th / 1746	Performance (Charts) n/a
Effective Value 8th / 336	Effective Value -
Price history View Details ►	Price history View Details ►
Price/GB $0.40	Price/GB $0.60
GB/$1 2.51	GB/$1 1.67
Series BLACK SN770 NVMe	Series BLACK SN850 NVMe
Capacity 250 GB	Capacity 500 GB
Interface PCIe Gen4 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller 20-82-10081-A1	SSD Controller WD/SanDisk NVMe G2
NAND Flash Type 3D TLC BiCS5	NAND Flash Type 3D NAND
Max Sequential Read Up to 4000 MB/s	Max Sequential Read Up to 7000 MB/s
Max Sequential Write Up to 2000 MB/s	Max Sequential Write Up to 4100 MB/s
MTBF 1.75 Million hours	MTBF 1.75M Hours