Product comparison · 2 internal hard drives

Samsung 400GB Ultra-ATA/133 HDD, 20-Pk vs Seagate Barracuda 7200.9, 250GB

21specifications compared
12differ
9identical
10known for one product only

Key differences

HDD capacity
- 400GB Ultra-ATA/133 HDD, 20-Pk:400 GB
- Barracuda 7200.9, 250GB:250 GB
Interface
- 400GB Ultra-ATA/133 HDD, 20-Pk:Ultra-ATA/133
- Barracuda 7200.9, 250GB:Serial ATA II
Storage drive buffer size
- 400GB Ultra-ATA/133 HDD, 20-Pk:8 MB
- Barracuda 7200.9, 250GB:16 MB
Average latency
- 400GB Ultra-ATA/133 HDD, 20-Pk:4.17 ms
- Barracuda 7200.9, 250GB:4.16 ms
Power consumption (standby)
- 400GB Ultra-ATA/133 HDD, 20-Pk:0.45 W
- Barracuda 7200.9, 250GB:0.8 W
Non-operating shock
- 400GB Ultra-ATA/133 HDD, 20-Pk:300 G
- Barracuda 7200.9, 250GB:350 G
Width
- 400GB Ultra-ATA/133 HDD, 20-Pk:147 mm
- Barracuda 7200.9, 250GB:101 mm
Depth
- 400GB Ultra-ATA/133 HDD, 20-Pk:101.6 mm
- Barracuda 7200.9, 250GB:146 mm

Side by side

Differences highlightedShow differences only

Comparison of 400GB Ultra-ATA/133 HDD, 20-Pk, Barracuda 7200.9, 250GB
31 specifications	A Samsung 400GB Ultra-ATA/133 HDD, 20-Pk View product	B Seagate Barracuda 7200.9, 250GB View product
Features4 differ
HDD capacityDiffers	400 GB	250 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Ultra-ATA/133	Serial ATA II
Storage drive buffer sizeDiffers	8 MB	16 MB
Full stroke seek timeKnown for one	18 ms	Unknown — not stated by the source
Track to track seek timeKnown for one	0.8 ms	Unknown — not stated by the source
Average seek timeKnown for one	8.9 ms	Unknown — not stated by the source
Average latencyDiffers	4.17 ms	4.16 ms
Bytes per sector	512	512
Start/stop cycles	50000	50000
Mean time between failures (MTBF)Known for one	600000 h	Unknown — not stated by the source
Power1 differ
Power consumption (typical)Known for one	9.6 W	Unknown — not stated by the source
Power consumption (standby)Differs	0.45 W	0.8 W
Operating voltage	5 / 12 V	5 / 12 V
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	7.2 W
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating shock	63 G	63 G
Non-operating shockDiffers	300 G	350 G
Weight & dimensions4 differ
WidthDiffers	147 mm	101 mm
DepthDiffers	101.6 mm	146 mm
HeightDiffers	26.1 mm	26 mm
WeightDiffers	651 g	635 g
Other features2 differ
Power requirementsKnown for one	+5V; +12V	Unknown — not stated by the source
Drive device, transfer rateDiffers	133 MB/s	300 MB/s
Drive ready timeKnown for one	10 s	Unknown — not stated by the source
Internal	Yes	Yes
Acoustic pressure emissionsDiffers	2.8 dB	3.4 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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