Product comparison · 2 internal hard drives

Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk vs Samsung Spinpoint M HM120JC internal hard drive

13specifications compared
11differ
2identical
14known for one product only

Key differences

The Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk has 130 GB more HDD capacity than the Samsung Spinpoint M HM120JC internal hard drive (250 GB vs 120 GB). The Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk has 1,800 RPM more HDD speed than the Samsung Spinpoint M HM120JC internal hard drive (7200 RPM vs 5400 RPM). The Samsung Spinpoint M HM120JC internal hard drive has 1.2 ms more track to track seek time than the Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk (2 ms vs 0.8 ms). Interface: Ultra-ATA/133 on the Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk, Ultra-ATA/100 on the Samsung Spinpoint M HM120JC internal hard drive.

HDD capacity
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:250 GB
- Spinpoint M HM120JC internal hard drive:120 GB
HDD speed
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:7200 RPM
- Spinpoint M HM120JC internal hard drive:5400 RPM
Interface
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:Ultra-ATA/133
- Spinpoint M HM120JC internal hard drive:Ultra-ATA/100
Track to track seek time
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:0.8 ms
- Spinpoint M HM120JC internal hard drive:2 ms
Average seek time
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:8.9 ms
- Spinpoint M HM120JC internal hard drive:12 ms
Average latency
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:4.17 ms
- Spinpoint M HM120JC internal hard drive:5.6 ms
Mean time between failures (MTBF)
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:500.000 h
- Spinpoint M HM120JC internal hard drive:330000 h
Width
- 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk:101.6 mm
- Spinpoint M HM120JC internal hard drive:100 mm

Side by side

Differences highlightedShow differences only

Comparison of 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk, HM120JC
27 specifications	A Samsung 250Gb UATA-133(ATA-7) 7200rpm 8Mb 20pk View product	B Samsung Spinpoint M HM120JC internal hard drive Model HM120JC View product
Features7 differ
HDD capacityDiffers	250 GB	120 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	Ultra-ATA/133	Ultra-ATA/100
Storage drive buffer size	8 MB	8 MB
Full stroke seek timeKnown for one	18 ms	Unknown — not stated by the source
Track to track seek timeDiffers	0.8 ms	2 ms
Average seek timeDiffers	8.9 ms	12 ms
Average latencyDiffers	4.17 ms	5.6 ms
Mean time between failures (MTBF)Differs	500.000 h	330000 h
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	600000
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
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
Non-operating shockKnown for one	350 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.6 mm	100 mm
DepthDiffers	146.1 mm	70 mm
HeightDiffers	25.4 mm	9.4 mm
WeightDiffers	635 g	100 g
Other featuresidentical
Dimensions (WxDxH)Known for one	101.6 x 146.1 x 25.4 mm	Unknown — not stated by the source
Internal	Yes	Yes
USB poweredKnown for one	No	Unknown — not stated by the source
HDD transfer rateKnown for one	Unknown — not stated by the source	431 Mbit/s
Drive device, transfer rateKnown for one	Unknown — not stated by the source	100 MB/s
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	5 V

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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