Product comparison · 2 internal hard drives

Samsung Spinpoint M HM120JC internal hard drive vs Seagate Barracuda 7200.9 250, Ultra ATA/100

11specifications compared
9differ
2identical
15known for one product only

Key differences

The Seagate Barracuda 7200.9 250, Ultra ATA/100 has 130 GB more HDD capacity than the Samsung Spinpoint M HM120JC internal hard drive (250 GB vs 120 GB). The Seagate Barracuda 7200.9 250, Ultra ATA/100 has 1,800 RPM more HDD speed than the Samsung Spinpoint M HM120JC internal hard drive (7200 RPM vs 5400 RPM). The Seagate Barracuda 7200.9 250, Ultra ATA/100 has 8 MB more storage drive buffer size than the Samsung Spinpoint M HM120JC internal hard drive (16 MB vs 8 MB).

HDD capacity
- Spinpoint M HM120JC internal hard drive:120 GB
- Barracuda 7200.9 250, Ultra ATA/100:250 GB
HDD speed
- Spinpoint M HM120JC internal hard drive:5400 RPM
- Barracuda 7200.9 250, Ultra ATA/100:7200 RPM
Storage drive buffer size
- Spinpoint M HM120JC internal hard drive:8 MB
- Barracuda 7200.9 250, Ultra ATA/100:16 MB
Average latency
- Spinpoint M HM120JC internal hard drive:5.6 ms
- Barracuda 7200.9 250, Ultra ATA/100:4.16 ms
Width
- Spinpoint M HM120JC internal hard drive:100 mm
- Barracuda 7200.9 250, Ultra ATA/100:101.6 mm
Depth
- Spinpoint M HM120JC internal hard drive:70 mm
- Barracuda 7200.9 250, Ultra ATA/100:146.9 mm
Height
- Spinpoint M HM120JC internal hard drive:9.4 mm
- Barracuda 7200.9 250, Ultra ATA/100:26 mm
Weight
- Spinpoint M HM120JC internal hard drive:100 g
- Barracuda 7200.9 250, Ultra ATA/100:635 g

Side by side

Differences highlightedShow differences only

Comparison of HM120JC, Barracuda 7200.9 250, Ultra ATA/100
26 specifications	A Samsung Spinpoint M HM120JC internal hard drive Model HM120JC View product	B Seagate Barracuda 7200.9 250, Ultra ATA/100 View product
Features4 differ
HDD capacityDiffers	120 GB	250 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
Track to track seek timeKnown for one	2 ms	Unknown — not stated by the source
Average seek timeKnown for one	12 ms	Unknown — not stated by the source
Average latencyDiffers	5.6 ms	4.16 ms
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	330000 h	Unknown — not stated by the source
HDD number of cylindersKnown for one	Unknown — not stated by the source	1024
HDD number of headsKnown for one	Unknown — not stated by the source	256
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	100 mm	101.6 mm
DepthDiffers	70 mm	146.9 mm
HeightDiffers	9.4 mm	26 mm
WeightDiffers	100 g	635 g
Other features1 differ
HDD transfer rateDiffers	431 Mbit/s	100 Mbit/s
Drive device, transfer rateKnown for one	100 MB/s	Unknown — not stated by the source
Power requirementsKnown for one	Unknown — not stated by the source	2.6
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.6 x 146.9 x 26.04 mm
Drive devices burst data transfer rate (DMA)Known for one	Unknown — not stated by the source	2
Drive devices burst data transfer rate (PIO)Known for one	Unknown — not stated by the source	4
Drive devices burst data transfer rate (Ultra DMA)Known for one	Unknown — not stated by the source	5

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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