Samsung 950 PRO 256GB M.2 vs SanDisk X400 M.2 256GB SSD Comparison

Samsung 950 PRO 256GB M.2 and SanDisk X400 M.2 256GB are both solid state drives with the same Capacity (256 GB) and Form Factor (M.2-2280). The main differences are in Interface, NVME, NAND Flash Type and Max Sequential Read.

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Samsung 950 PRO 256GB M.2	SanDisk X400 M.2 256GB
Prices (Change region) In Stock Free shipping $199.99	Prices (Change region) In Stock Free shipping $99.99
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Pangoly Score (How do we rate?) 95	Pangoly Score (How do we rate?) -
Brand Samsung	Brand SanDisk
Model MZ-V5P256BW	Model SD8SN8U-256G-1122
Release Date 📅 October 2015	Release Date 📅 November 2020
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★★ (103 reviews) Add a product review	User reviews ★★★★☆ (83 reviews) Add a product review
Performance (Charts) 132nd / 1746	Performance (Charts) n/a
Effective Value 175th / 336	Effective Value -
Price history View Details ►	Price history View Details ►
Price/GB $0.78	Price/GB $0.39
GB/$1 1.28	GB/$1 2.56
Series 950 PRO	Series X400
Capacity 256 GB	Capacity 256 GB
Interface PCIe Gen3 x4	Interface SATA 6 Gb/s
NVME Yes	NVME No
Form Factor M.2-2280	Form Factor M.2-2280
SSD Controller Samsung UBX	SSD Controller -
NAND Flash Type Samsung V-NAND	NAND Flash Type TLC
Cache 512MB	Cache -
Max Sequential Read Up to 2200 MB/s	Max Sequential Read Up to 540 MB/s
Max Sequential Write Up to 900 MB/s	Max Sequential Write Up to 520 MB/s
MTBF 1,500,000 hours	MTBF Up to 1.75M hours