Western Digital SA530 256GB M.2 vs Samsung 950 PRO 256GB M.2 SSD Comparison

Western Digital SA530 256GB M.2 and Samsung 950 PRO 256GB M.2 are both solid state drives with the same Capacity (256 GB) and Form Factor (M.2-2280). The main differences are in Interface, NVME, SSD Controller and NAND Flash Type.

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Western Digital SA530 256GB M.2	Samsung 950 PRO 256GB M.2
Prices (Change region) Out of Stock Free shipping $96.99	Prices (Change region) In Stock Free shipping $199.99
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Pangoly Score (How do we rate?) -	Pangoly Score (How do we rate?) 95
Brand Western Digital	Brand Samsung
Model SDASN8Y256G1122	Model MZ-V5P256BW
Release Date 📅 August 2020	Release Date 📅 October 2015
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★★ (103 reviews) Add a product review
Performance (Charts) n/a	Performance (Charts) 132nd / 1746
Effective Value -	Effective Value 175th / 336
Price history View Details ►	Price history View Details ►
Price/GB $0.38	Price/GB $0.78
GB/$1 2.64	GB/$1 1.28
Series PC SA530	Series 950 PRO
Capacity 256 GB	Capacity 256 GB
Interface SATA 6 Gb/s	Interface PCIe Gen3 x4
NVME No	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller SanDisk	SSD Controller Samsung UBX
NAND Flash Type 3D NAND	NAND Flash Type Samsung V-NAND
Cache -	Cache 512MB
Max Sequential Read Up to 560 MB/s	Max Sequential Read Up to 2200 MB/s
Max Sequential Write Up to 530 MB/s	Max Sequential Write Up to 900 MB/s
MTBF 1,750,000 hours	MTBF 1,500,000 hours