Compare Solid State Drives

Compare SANDISK Optimus GX PRO 850X 8TB Heatsink vs Silicon Power UD90 500GB

SANDISK Optimus GX PRO 850X 8TB Heatsink and Silicon Power UD90 500GB are both solid state drives with the same Interface (PCIe Gen4 x4) and Form Factor (M.2-2280). The main differences are in Capacity.

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SANDISK Optimus GX PRO 850X 8TB Heatsink

Silicon Power UD90 500GB

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Prices
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In Stock

Last updated 46 minutes ago.

In Stock

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Brand

SanDisk

Brand

Silicon Power

Model

SDSP81800TAH-000E0
SDSP81800TAH

Model

SP500GBP44UD9005
SP500GBP44UD9005AY

Release Date

📅 February 2026

Release Date

-

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

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Price history

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Price history

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Price/GB

$0.34

Price/GB

$0.22

GB/$1

2.96

GB/$1

4.59

Capacity

8000 GB

Capacity

500 GB

Interface

PCIe Gen4 x4

Interface

PCIe Gen4 x4

NVME

Yes

NVME

Yes

Form Factor

M.2-2280

Form Factor

M.2-2280

-

Options (3)

	1 TB Standard $164.97
	4 TB Standard $449.97
	2 TB Standard $274.97

Comparison and key differences summary

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

More Capacity (+7500 GB available)

Reasons to buy the Silicon Power UD90 500GB:

96% cheaper, you can save $2,591.02

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