Compare Solid State Drives

Compare Samsung 840 EVO 250GB vs SANDISK Optimus GX PRO 850X 8TB Heatsink

The main differences between Samsung 840 EVO 250GB and SANDISK Optimus GX PRO 850X 8TB Heatsink are in Capacity, Interface, NVME and Form Factor.

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Samsung 840 EVO 250GB

SANDISK Optimus GX PRO 850X 8TB Heatsink

Prices
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In Stock

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Prices
(Change region)

In Stock

Free shipping

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Pangoly Score (How do we rate?)

91

Pangoly Score (How do we rate?)

-

Brand

Samsung

Brand

SanDisk

Model

MZ-7TE250BW

Model

SDSP81800TAH-000E0
SDSP81800TAH

Release Date

📅 August 2013

Release Date

📅 February 2026

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

User reviews

★★★★★

(150 reviews)

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User reviews

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Performance (Charts)

235th / 1746

Performance (Charts)

n/a

Effective Value

226th / 336

Effective Value

-

Price history

View Details ►

Price history

View Details ►

Price/GB

$0.48

Price/GB

$0.34

GB/$1

2.08

GB/$1

2.96

Pros

Great performance
Samsung MEX Controller
Very good pricing

Pros

-

Cons

Questionable reliability compared to MLC NAND

Cons

-

Series

840 EVO

Series

-

Capacity

250 GB

Capacity

8000 GB

Interface

SATA 6 Gb/s

Interface

PCIe Gen4 x4

NVME

No

NVME

Yes

Form Factor

2.5"

Form Factor

M.2-2280

SSD Controller

Samsung MEX

SSD Controller

-

NAND Flash Type

1x nm Samsung Toggle DDR 2.0 3-Bit MLC NAND Flash Memory (400Mbps)

NAND Flash Type

-

Cache

512MB

Cache

-

MTBF

1,500,000 hours

MTBF

-

Options (1)

Samsung 840 EVO 500GB

500 GB
$199.99

-

Comparison and key differences summary

Reasons to buy the Samsung 840 EVO 250GB:

96% cheaper, you can save $2,580.00

Reasons to buy the SANDISK Optimus GX PRO 850X 8TB Heatsink:

Newer Product, it was released around 13 years later
More Capacity (+7750 GB available)
Newer interface (PCIe Gen4 x4)

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