Western Digital BLACK SN850X 4TB vs Samsung 990 PRO 4TB SSD Comparison

Save comparison

Western Digital BLACK SN850X 4TB

Samsung 990 PRO 4TB

Prices
(Change region)

In Stock

$279.95

(Used from $258.24) Last updated 23 minutes ago.

In Stock

Free shipping

$279.99

In Stock

Free shipping

$299.99

Show 3 more offers

Prices
(Change region)

In Stock

$316.81

(Used from $301.44) Last updated 25 minutes ago.

In Stock

Free shipping

$318.99

In Stock

Free shipping

$319.99

Show 5 more offers

* Pangoly may earn a commission when you use one of the links to make a purchase. (Disclosure)

* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.

Brand

Western Digital

Brand

Samsung

Model

WDS400T2X0E

Model

MZ-V9P4T0B/AM
MZ-V9P4T0BW

Release Date

📅 August 2022

Release Date

📅 September 2023

* 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)

15th / 1473

(0%)

Performance (Charts)

19th / 1473

(-10%)

Effective Value

63rd / 323

Effective Value

91st / 323

Price history

View Details ►

Price history

View Details ►

Price/GB

$0.07

Price/GB

$0.08

GB/$1

14.29

GB/$1

12.63

Series

BLACK SN850X NVMe

Series

Capacity

4000 GB

Capacity

4000 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

20-82-20035-B1

SSD Controller

Samsung Pascal

NAND Flash Type

BiCS5 112-layer TLC

NAND Flash Type

V7 V-NAND 3bit MLC

Max Sequential Read

Up to 7300 MB/s

Max Sequential Read

Max Sequential Write

Up to 6600 MB/s

Max Sequential Write

MTBF

1.75M Hours

MTBF

Options (10)

	SN850 w/ Heatsink - Up to 7,000 MB/s 1TB $102.99
	SN850X - Up to 7,300 MB/s 2TB $147.00
	SN850 - Up to 7,000 MB/s 500GB $59.99
	SN850 w/ Heatsink - Up to 7,000 MB/s 500GB $69.99
	SN850 w/ Heatsink - Up to 7,000 MB/s 2TB $115.52
	SN850 - Up to 7,000 MB/s 2TB $219.99
	SN850X - Up to 7,300 MB/s 1TB $81.00
	SN850 - Up to 7,000 MB/s 1TB $104.99
	SN850X w/ Heatsink - Up to 7,300 MB/s 2TB $149.99
	SN850X w/ Heatsink - Up to 7,300 MB/s 1TB $99.99

Options (4)

	990 PRO 2TB $168.47
	990 PRO w/ Heatsink 2TB $179.00
	990 PRO w/ Heatsink 1TB $99.00
	990 PRO 1TB $99.99

What are the differences between Western Digital BLACK SN850X 4TB and Samsung 990 PRO 4TB? Analyze head-to-head all specifications and features to find out the better ssd.