Product comparison · 2 internal hard drives

Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s vs Seagate DB35 7200.3 400GB Ultra ATA 100

Key differences

HDD capacity
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:120 GB
- DB35 7200.3 400GB Ultra ATA 100:400 GB
Interface
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:Serial ATA II
- DB35 7200.3 400GB Ultra ATA 100:Ultra-ATA/100
Storage drive buffer size
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:2 MB
- DB35 7200.3 400GB Ultra ATA 100:8 MB
Non-operating shock
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:350 G
- DB35 7200.3 400GB Ultra ATA 100:300 G
Weight
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:580 g
- DB35 7200.3 400GB Ultra ATA 100:635 g
Drive device, transfer rate
- Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s:300 MB/s
- DB35 7200.3 400GB Ultra ATA 100:100 MB/s

Differences highlightedShow differences only

Comparison of Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s, DB35 7200.3 400GB Ultra ATA 100
24 specifications	A Seagate Barracuda 7200.9 120 GB 7200 rpm SATA 3Gb/s View product	B Seagate DB35 7200.3 400GB Ultra ATA 100 View product
Features3 differ
HDD capacityDiffers	120 GB	400 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA II	Ultra-ATA/100
Storage drive buffer sizeDiffers	2 MB	8 MB
Read seek timeKnown for one	8 ms	Unknown — not stated by the source
Write seek timeKnown for one	9 ms	Unknown — not stated by the source
Average latencyKnown for one	4.16 ms	Unknown — not stated by the source
Poweridentical
Power consumption (standby)Known for one	1.30 W	Unknown — not stated by the source
Operating voltage	5 / 12 V	5 / 12 V
Operational conditions1 differ
Operating shockKnown for one	63 G	Unknown — not stated by the source
Non-operating shockDiffers	350 G	300 G
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Weight & dimensions1 differ
Width	101.6 mm	101.6 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
WeightDiffers	580 g	635 g
Other features1 differ
HDD transfer rateKnown for one	867.2 Mbit/s	Unknown — not stated by the source
Drive device, transfer rateDiffers	300 MB/s	100 MB/s
External power adapterKnown for one	No	Unknown — not stated by the source
Internal	Yes	Yes
USB poweredKnown for one	No	Unknown — not stated by the source
Sustained data rateKnown for one	83 MB/s	Unknown — not stated by the source

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.