Product comparison · 2 internal hard drives

Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) vs Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS)

14specifications compared
9differ
5identical
4known for one product only

Key differences

The Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS) has 20 GB more HDD capacity than the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) (100 GB vs 80 GB). The Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) has 1,800 RPM more HDD speed than the Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS) (7200 RPM vs 5400 RPM). The Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS) has 4 ms more average seek time than the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS) (12.5 ms vs 8.5 ms). Operating temperature (T-T): 0 - 60 °C on the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), 5 - 55 °C on the Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS). Dimensions (WxDxH): 101.6 x 146.99 x 26.035 mm on the Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), 69.85 x 100.2 x 9.5 mm on the Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS).

HDD capacity
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):80 GB
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):100 GB
HDD speed
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):7200 RPM
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):5400 RPM
Average seek time
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):8.5 ms
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):12.5 ms
Average latency
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):4.16 ms
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):5.56 ms
Operating temperature (T-T)
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):0 - 60 °C
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):5 - 55 °C
Weight
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):635 g
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):100 g
Power requirements
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):13.5 W
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):2.2 W
Dimensions (WxDxH)
- Barracuda 7200.7 SATA NCQ 80GB (ST380817AS):101.6 x 146.99 x 26.035 mm
- Momentus 5400.2 100GB 8MB SATA (ST9100824AS):69.85 x 100.2 x 9.5 mm

Side by side

Differences highlightedShow differences only

Comparison of Barracuda 7200.7 SATA NCQ 80GB (ST380817AS), Momentus 5400.2 100GB 8MB SATA (ST9100824AS)
18 specifications	A Seagate Barracuda 7200.7 SATA NCQ 80GB (ST380817AS)View product	B Seagate Momentus 5400.2 100GB 8MB SATA (ST9100824AS)View product
Features4 differ
HDD capacityDiffers	80 GB	100 GB
HDD speedDiffers	7200 RPM	5400 RPM
Interface	Serial ATA	Serial ATA
Storage drive buffer size	8 MB	8 MB
Average seek timeDiffers	8.5 ms	12.5 ms
Average latencyDiffers	4.16 ms	5.56 ms
Bytes per sector	512	512
Component forKnown for one	Unknown — not stated by the source	Laptop
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Weight & dimensions1 differ
WeightDiffers	635 g	100 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 rate	150 Mbit/s	150 Mbit/s
Power requirementsDiffers	13.5 W	2.2 W
Dimensions (WxDxH)Differs	101.6 x 146.99 x 26.035 mm	69.85 x 100.2 x 9.5 mm
Internal	Yes	Yes
USB poweredKnown for one	No	Unknown — not stated by the source
Sustained data rateKnown for one	58 MB/s	Unknown — not stated by the source
Acoustic pressure emissionsDiffers	25 dB	24 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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