Compare Solid State Drives

Compare SANDISK Optimus GX PRO 850X 1TB Heatsink vs XPG S40G 1TB

SANDISK Optimus GX PRO 850X 1TB Heatsink and XPG S40G 1TB are both solid state drives with the same Capacity (1000 GB) and Form Factor (M.2-2280). The main differences are in Interface.

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SANDISK Optimus GX PRO 850X 1TB Heatsink

XPG S40G 1TB

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* 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

SanDisk

Brand

XPG

Model

SDSP81100TAH-000E0
SDSP81100TAH

Model

AS40G-1TT-C

Release Date

📅 February 2026

Release Date

📅 November 2019

* First availability for purchase, it may not correspond to the actual market launch date.

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User reviews

★★★☆☆

(7 reviews)

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Price history

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Price history

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Price/GB

$0.35

Price/GB

$0.08

GB/$1

2.86

GB/$1

12.5

Series

-

Series

SPECTRIX S40G RGB

Capacity

1000 GB

Capacity

1000 GB

Interface

PCIe Gen4 x4

Interface

PCIe Gen3 x4

NVME

Yes

NVME

Yes

Form Factor

M.2-2280

Form Factor

M.2-2280

NAND Flash Type

-

NAND Flash Type

3D TLC

Max Sequential Read

-

Max Sequential Read

ATTO: Up to 3500 MB/s
CDM: Up to 3500 MB/s
AS SSD: Up to 2950 MB/s

Max Sequential Write

-

Max Sequential Write

ATTO: Up to 1900 MB/s
CDM: Up to 3000 MB/s
AS SSD: Up to 1600 MB/s

MTBF

-

MTBF

2,000,000 hours

-

Options (4)

	4 TB $566.36
	256GB $45.99
	512GB $44.99
	2TB $189.99

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 1TB Heatsink:

Newer Product, it was released around 6 years later
Newer interface (PCIe Gen4 x4)

Reasons to buy the XPG S40G 1TB:

77% cheaper, you can save $270.00

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