Compare Hard Disk Drives

Compare Western Digital Caviar Blue 320GB vs Caviar Blue 640GB

Western Digital Caviar Blue 320GB and Western Digital Caviar Blue 640GB are both hard disk drives with the same Cache (16MB), RPM (7200) and Interface (SATA 3 Gb/s). The main differences are in Performance (+11%) and Capacity.

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Western Digital Caviar Blue 320GB

Western Digital Caviar Blue 640GB

Prices
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In Stock

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Prices
(Change region)

In Stock

Last updated 25 minutes ago.

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Brand

Western Digital

Brand

Western Digital

Model

WD3200AAKS

Model

WD6400AAKS

Release Date

-

Release Date

-

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

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Performance (Charts)

143rd / 637

(-11%)

Performance (Charts)

126th / 637

(0%)

Effective Value

62nd / 161

Effective Value

37th / 161

Price history

View Details ►

Price history

View Details ►

Price/GB

$0.11

Price/GB

$0.05

GB/$1

9.15

GB/$1

18.63

Capacity

320 GB

Capacity

640 GB

Cache

16MB

Cache

16MB

RPM

7200

RPM

7200

Interface

SATA 3 Gb/s

Interface

SATA 3 Gb/s

Form Factor

3.5"

Form Factor

3.5"

Options (3)

	640 GB $34.36
	500 GB $48.95
	250 GB $149.95

Options (3)

	500 GB $48.95
	250 GB $149.95
	320 GB $34.99

Comparison and key differences summary

Reasons to buy the Western Digital Caviar Blue 320GB:

Reasons to buy the Western Digital Caviar Blue 640GB:

Moderately better performance, around +11%
Moderately better effective value.
More Capacity (+320 GB available)

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