Product comparison · 2 internal hard drives

Samsung 120GB Serial ATA Hard Drive vs Samsung 250GB HDD

26specifications compared
5differ
21identical
10known for one product only

Key differences

The Samsung 250GB HDD has 170 GB more HDD capacity than the Samsung 120GB Serial ATA Hard Drive (250 GB vs 80 GB). Interface: Serial ATA on the Samsung 120GB Serial ATA Hard Drive, Ultra-ATA/133 on the Samsung 250GB HDD. Operating temperature (T-T): 5 - 55 °C on the Samsung 120GB Serial ATA Hard Drive, 0 - 60 °C on the Samsung 250GB HDD. Operating altitude: -305 - 3050 m on the Samsung 120GB Serial ATA Hard Drive, -304.8 - 3048 m on the Samsung 250GB HDD. Non-operating altitude: -305 - 12200 m on the Samsung 120GB Serial ATA Hard Drive, -304.8 - 12192 m on the Samsung 250GB HDD.

HDD capacity
- 120GB Serial ATA Hard Drive:80 GB
- 250GB HDD:250 GB
Interface
- 120GB Serial ATA Hard Drive:Serial ATA
- 250GB HDD:Ultra-ATA/133
Operating temperature (T-T)
- 120GB Serial ATA Hard Drive:5 - 55 °C
- 250GB HDD:0 - 60 °C
Operating altitude
- 120GB Serial ATA Hard Drive:-305 - 3050 m
- 250GB HDD:-304.8 - 3048 m
Non-operating altitude
- 120GB Serial ATA Hard Drive:-305 - 12200 m
- 250GB HDD:-304.8 - 12192 m

Side by side

Differences highlightedShow differences only

Comparison of 120GB Serial ATA Hard Drive, 250GB HDD
36 specifications	A Samsung 120GB Serial ATA Hard Drive View product	B Samsung 250GB HDD View product
Features2 differ
HDD capacityDiffers	80 GB	250 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/133
Storage drive buffer size	8 MB	8 MB
Full stroke seek time	18 ms	18 ms
Track to track seek time	0.8 ms	0.8 ms
Average seek time	8.9 ms	8.9 ms
Average latency	4.17 ms	4.17 ms
Bytes per sector	512	512
Start/stop cycles	50000	50000
Mean time between failures (MTBF)	500000 h	500000 h
TypeKnown for one	Unknown — not stated by the source	HDD
Poweridentical
Power consumption (standby)Known for one	0.9 W	Unknown — not stated by the source
Operating voltage	5 / 12 V	5 / 12 V
Power consumption (typical)Known for one	Unknown — not stated by the source	9 W
Power consumption (idle)Known for one	Unknown — not stated by the source	7 W
Operational conditions3 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitudeDiffers	-305 - 3050 m	-304.8 - 3048 m
Non-operating altitudeDiffers	-305 - 12200 m	-304.8 - 12192 m
Operating shock	63 G	63 G
Non-operating shock	350 G	350 G
Operating vibrationKnown for one	Unknown — not stated by the source	1.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	8 G
Weight & dimensionsidentical
Width	101.6 mm	101.6 mm
Depth	146.1 mm	146.1 mm
Height	25.4 mm	25.4 mm
Weight	635 g	635 g
Other featuresidentical
Power requirementsKnown for one	5V°±5% / 12V°±10%	Unknown — not stated by the source
Drive device, transfer rateKnown for one	150 MB/s	Unknown — not stated by the source
Drive ready time	7 s	7 s
InternalKnown for one	Yes	Unknown — not stated by the source
Acoustic pressure emissionsKnown for one	27 dB	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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