Product comparison · 2 internal hard drives

Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) 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 220 GB more HDD capacity than the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) (300 GB vs 80 GB). The Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) has 0.5 ms more average seek time than the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A) (8.5 ms vs 8 ms). The Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) has 0.7 W more power requirements than the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A) (13.5 W vs 12.8 W). Interface: Serial ATA on the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), Ultra-ATA/100 on the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A). Dimensions (WxDxH): 101.6 x 146.99 x 26.035 mm on the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), 101.6 x 146.99 x 26.11 mm on the Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A).

HDD capacity
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):80 GB
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):300 GB
Interface
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):Serial ATA
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):Ultra-ATA/100
Average seek time
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):8.5 ms
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):8 ms
Power requirements
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):13.5 W
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):12.8 W
Dimensions (WxDxH)
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):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 SATA NCQ 80GB (ST380817AS):25 dB
- WD Barracuda 7200.8 300GB 8MB (ST3300831A):28 dB

Side by side

Differences highlightedShow differences only

Comparison of Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), WD Barracuda 7200.8 300GB 8MB (ST3300831A)
17 specifications	A Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS)View product	B Seagate WD Barracuda 7200.8 300GB 8MB (ST3300831A)View product
Features3 differ
HDD capacityDiffers	80 GB	300 GB
HDD speed	7200 RPM	7200 RPM
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Storage drive buffer size	8 MB	8 MB
Average seek timeDiffers	8.5 ms	8 ms
Average latency	4.16 ms	4.16 ms
Bytes per sector	512	512
Operational conditionsidentical
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Weight & dimensionsidentical
Weight	635 g	635 g
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
HDD transfer rateKnown for one	150 Mbit/s	Unknown — not stated by the source
Power requirementsDiffers	13.5 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
Internal	Yes	Yes
USB powered	No	No
Sustained data rateKnown for one	58 MB/s	Unknown — not stated by the source
Acoustic pressure emissionsDiffers	25 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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