Product comparison · 2 internal hard drives

Samsung 250GB HDD vs Seagate 400GB HDD

27specifications compared
14differ
13identical
8known for one product only

Key differences

The Seagate 400GB HDD has 150 GB more HDD capacity than the Samsung 250GB HDD (400 GB vs 250 GB). The Samsung 250GB HDD has 0.9 ms more average seek time than the Seagate 400GB HDD (8.9 ms vs 8 ms). The Samsung 250GB HDD has 0.01 ms more average latency than the Seagate 400GB HDD (4.17 ms vs 4.16 ms). Interface: Ultra-ATA/133 on the Samsung 250GB HDD, Ultra-ATA/100 on the Seagate 400GB HDD. Operating altitude: -304.8 - 3048 m on the Samsung 250GB HDD, -60.96 - 3048 m on the Seagate 400GB HDD.

HDD capacity
- 250GB HDD:250 GB
- 400GB HDD:400 GB
Interface
- 250GB HDD:Ultra-ATA/133
- 400GB HDD:Ultra-ATA/100
Average seek time
- 250GB HDD:8.9 ms
- 400GB HDD:8 ms
Average latency
- 250GB HDD:4.17 ms
- 400GB HDD:4.16 ms
Power consumption (typical)
- 250GB HDD:9 W
- 400GB HDD:12.4 W
Power consumption (idle)
- 250GB HDD:7 W
- 400GB HDD:7.2 W
Operating vibration
- 250GB HDD:1.5 G
- 400GB HDD:0.5 G
Non-operating vibration
- 250GB HDD:8 G
- 400GB HDD:5 G

Side by side

Differences highlightedShow differences only

Comparison of 250GB HDD, 400GB HDD
35 specifications	A Samsung 250GB HDD View product	B Seagate 400GB HDD View product
Features4 differ
HDD capacityDiffers	250 GB	400 GB
InterfaceDiffers	Ultra-ATA/133	Ultra-ATA/100
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 timeDiffers	8.9 ms	8 ms
Average latencyDiffers	4.17 ms	4.16 ms
Mean time between failures (MTBF)Known for one	500000 h	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	9 W	12.4 W
Power consumption (idle)Differs	7 W	7.2 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.8 W
Power consumption (read)Known for one	Unknown — not stated by the source	12.8 W
Power consumption (write)Known for one	Unknown — not stated by the source	12.8 W
Start-up currentKnown for one	Unknown — not stated by the source	2.8 A
Operational conditions5 differ
Operating vibrationDiffers	1.5 G	0.5 G
Non-operating vibrationDiffers	8 G	5 G
Operating altitudeDiffers	-304.8 - 3048 m	-60.96 - 3048 m
Non-operating altitudeDiffers	-304.8 - 12192 m	-60.96 - 12192 m
Non-operating shockDiffers	350 G	300 G
Weight & dimensions3 differ
WidthDiffers	101.6 mm	101.8 mm
DepthDiffers	146.1 mm	147 mm
HeightDiffers	25.4 mm	26.1 mm
Other featuresidentical
Drive ready timeKnown for one	7 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.

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