Product comparison · 2 internal hard drives

HP CS/HP HDD/300GB 15k U320 HDD/E-ON vs Seagate Momentus 7200.3 250GB

10specifications compared
8differ
2identical
22known for one product only

Key differences

The HP CS/HP HDD/300GB 15k U320 HDD/E-ON has 50 GB more HDD capacity than the Seagate Momentus 7200.3 250GB (300 GB vs 250 GB). The HP CS/HP HDD/300GB 15k U320 HDD/E-ON has 7,800 RPM more HDD speed than the Seagate Momentus 7200.3 250GB (15000 RPM vs 7200 RPM). The HP CS/HP HDD/300GB 15k U320 HDD/E-ON has 0.73 ms more average latency than the Seagate Momentus 7200.3 250GB (4.9 ms vs 4.17 ms). Interface: Ultra320 SCSI on the HP CS/HP HDD/300GB 15k U320 HDD/E-ON, Serial ATA on the Seagate Momentus 7200.3 250GB.

HDD capacity
- CS/HP HDD/300GB 15k U320 HDD/E-ON:300 GB
- Momentus 7200.3 250GB:250 GB
HDD speed
- CS/HP HDD/300GB 15k U320 HDD/E-ON:15000 RPM
- Momentus 7200.3 250GB:7200 RPM
Interface
- CS/HP HDD/300GB 15k U320 HDD/E-ON:Ultra320 SCSI
- Momentus 7200.3 250GB:Serial ATA
Average latency
- CS/HP HDD/300GB 15k U320 HDD/E-ON:4.9 ms
- Momentus 7200.3 250GB:4.17 ms
Width
- CS/HP HDD/300GB 15k U320 HDD/E-ON:101.6 mm
- Momentus 7200.3 250GB:69.8 mm
Height
- CS/HP HDD/300GB 15k U320 HDD/E-ON:25.4 mm
- Momentus 7200.3 250GB:9.5 mm
Weight
- CS/HP HDD/300GB 15k U320 HDD/E-ON:800 g
- Momentus 7200.3 250GB:110 g
HDD transfer rate
- CS/HP HDD/300GB 15k U320 HDD/E-ON:320 Mbit/s
- Momentus 7200.3 250GB:80 Mbit/s

Side by side

Differences highlightedShow differences only

Comparison of CS/HP HDD/300GB 15k U320 HDD/E-ON, Momentus 7200.3 250GB
32 specifications	A HP CS/HP HDD/300GB 15k U320 HDD/E-ON View product	B Seagate Momentus 7200.3 250GB View product
Features4 differ
HDD capacityDiffers	300 GB	250 GB
HDD speedDiffers	15000 RPM	7200 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
InterfaceDiffers	Ultra320 SCSI	Serial ATA
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
HDD number of headsKnown for one	Unknown — not stated by the source	3
Average latencyDiffers	4.9 ms	4.17 ms
Bytes per sector	512	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	600000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	500000 h
Full stroke seek timeKnown for one	10 ms	Unknown — not stated by the source
Poweridentical
Power consumption (standby)Known for one	Unknown — not stated by the source	0.21 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.75 W
Power consumption (read)Known for one	Unknown — not stated by the source	2.1 W
Power consumption (write)Known for one	Unknown — not stated by the source	2.1 W
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating shockKnown for one	Unknown — not stated by the source	350 G
Non-operating shockKnown for one	Unknown — not stated by the source	1000 G
Weight & dimensions3 differ
WidthDiffers	101.6 mm	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightDiffers	25.4 mm	9.5 mm
WeightDiffers	800 g	110 g
Other features1 differ
HDD transfer rateDiffers	320 Mbit/s	80 Mbit/s
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Disks included quantityKnown for one	Unknown — not stated by the source	2 pc(s)
Internal	Yes	Yes
Maximum data transfer rateKnown for one	Unknown — not stated by the source	300 Mbit/s
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	2.3 dB
Interface typeKnown for one	Wide Ultra320 SCSI-LVD	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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