Product comparison · 2 internal hard drives

Seagate Barracuda 7200.7 40GB 2MB (ST340014A) vs Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A)

14specifications compared
6differ
8identical
3known for one product only

Key differences

The Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A) has 260 GB more HDD capacity than the Seagate Barracuda 7200.7 40GB 2MB (ST340014A) (300 GB vs 40 GB). The Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A) has 6 MB more storage drive buffer size than the Seagate Barracuda 7200.7 40GB 2MB (ST340014A) (8 MB vs 2 MB). The Seagate Barracuda 7200.7 40GB 2MB (ST340014A) has 0.5 ms more average seek time than the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A) (8.5 ms vs 8 ms). Dimensions (WxDxH): 101.6 x 146.99 x 26.035 mm on the Seagate Barracuda 7200.7 40GB 2MB (ST340014A), 101.6 x 146.99 x 26.11 mm on the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A).

HDD capacity
- Barracuda 7200.7 40GB 2MB (ST340014A):40 GB
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):300 GB
Storage drive buffer size
- Barracuda 7200.7 40GB 2MB (ST340014A):2 MB
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):8 MB
Average seek time
- Barracuda 7200.7 40GB 2MB (ST340014A):8.5 ms
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):8 ms
Power requirements
- Barracuda 7200.7 40GB 2MB (ST340014A):12.5 W
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):12.8 W
Dimensions (WxDxH)
- Barracuda 7200.7 40GB 2MB (ST340014A):101.6 x 146.99 x 26.035 mm
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):101.6 x 146.99 x 26.11 mm
Acoustic pressure emissions
- Barracuda 7200.7 40GB 2MB (ST340014A):22 dB
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):28 dB

Side by side

Differences highlightedShow differences only

Comparison of Barracuda 7200.7 40GB 2MB (ST340014A), WD Barracuda 7200.8 300GB 8MB (ST3300831A)
17 specifications	A Seagate Barracuda 7200.7 40GB 2MB (ST340014A)View product	B Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A)View product
Features3 differ
HDD capacityDiffers	40 GB	300 GB
Storage drive buffer sizeDiffers	2 MB	8 MB
HDD number of headsKnown for one	1	Unknown — not stated by the source
Average seek timeDiffers	8.5 ms	8 ms
Other features3 differ
Special featuresKnown for one	350 Gs non-op shock 3D Defense System S.M.A.R.T.	Unknown — not stated by the source
Power requirementsDiffers	12.5 W	12.8 W
Dimensions (WxDxH)Differs	101.6 x 146.99 x 26.035 mm	101.6 x 146.99 x 26.11 mm
Sustained data rateKnown for one	58 MB/s	Unknown — not stated by the source
Acoustic pressure emissionsDiffers	22 dB	28 dB

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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