Compare Hard Disk Drives

Compare Western Digital Purple 3TB WD30PURX vs Purple Surveillance 4TB

Western Digital Purple 3TB WD30PURX and Western Digital Purple Surveillance 4TB are both hard disk drives with the same RPM (5400), Interface (SATA 6 Gb/s) and Form Factor (3.5"). The main differences are in Capacity and Cache.

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Western Digital Purple 3TB WD30PURX

Western Digital Purple Surveillance 4TB

Prices
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In Stock

Free shipping

In Stock

Last updated 42 minutes ago.

In Stock

Prices
(Change region)

In Stock

Free shipping

In Stock

Last updated 45 minutes ago.

In Stock

Free shipping

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Brand

Western Digital

Brand

Western Digital

Model

WD30PURX

Model

WD43PURZ

Release Date

📅 February 2014

Release Date

📅 May 2023

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

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Performance (Charts)

85th / 637

Performance (Charts)

n/a

Effective Value

69th / 161

Effective Value

-

Price history

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Price history

View Details ►

Price/GB

$0.03

Price/GB

$0.02

GB/$1

35.29

GB/$1

43.96

Capacity

3000 GB

Capacity

4000 GB

Cache

64MB

Cache

256MB

RPM

5400

RPM

5400

Interface

SATA 6 Gb/s

Interface

SATA 6 Gb/s

Form Factor

3.5"

Form Factor

3.5"

Options (3)

	2TB Old Generation Surveillance HDD $140.00
	4TB Old Generation Surveillance HDD $124.95
	6TB Old Generation Surveillance HDD $250.00

Options (1)

Western Digital Purple Surveillance 6TB

6TB
$249.99

Comparison and key differences summary

Reasons to buy the Western Digital Purple 3TB WD30PURX:

20% cheaper, you can save $39.99

Reasons to buy the Western Digital Purple Surveillance 4TB:

Newer Product, it was released around 9 years later
More Capacity (+1000 GB available)
More Internal Cache (+192 MB available)

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