Product comparison · 2 internal hard drives

Samsung 640GB SATA II HDD vs Samsung SpinPoint F1 HM250JI/251JI internal hard drive

14specifications compared
7differ
7identical
16known for one product only

Key differences

HDD capacity
- 640GB SATA II HDD:640 GB
- SpinPoint F1 HM250JI/251JI internal hard drive:250 GB
HDD speed
- 640GB SATA II HDD:7200 RPM
- SpinPoint F1 HM250JI/251JI internal hard drive:5400 RPM
Interface
- 640GB SATA II HDD:Serial ATA II
- SpinPoint F1 HM250JI/251JI internal hard drive:Serial ATA
Operating temperature (T-T)
- 640GB SATA II HDD:0 - 60 °C
- SpinPoint F1 HM250JI/251JI internal hard drive:5 - 55 °C
Operating altitude
- 640GB SATA II HDD:-300 - 3000 m
- SpinPoint F1 HM250JI/251JI internal hard drive:-1000 - 10000 m
Non-operating altitude
- 640GB SATA II HDD:-300 - 12000 m
- SpinPoint F1 HM250JI/251JI internal hard drive:-1400 - 50000 m
Dimensions (WxDxH)
- 640GB SATA II HDD:101.5 x 147 x 26.1 mm
- SpinPoint F1 HM250JI/251JI internal hard drive:69.8 x 9.3 x 100 mm

Side by side

Differences highlightedShow differences only

Comparison of 640GB SATA II HDD, HM250JI/251JI
30 specifications	A Samsung 640GB SATA II HDD View product	B Samsung SpinPoint F1 HM250JI/251JI internal hard drive Model HM250JI/251JI View product
Features3 differ
HDD capacityDiffers	640 GB	250 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	Serial ATA II	Serial ATA
Storage drive buffer sizeKnown for one	16 MB	Unknown — not stated by the source
Average seek timeKnown for one	8.9 ms	Unknown — not stated by the source
Average latencyKnown for one	4.17 ms	Unknown — not stated by the source
Bytes per sector	512	512
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1200000 h	Unknown — not stated by the source
Poweridentical
Power consumption (standby)Known for one	1 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	1 W	Unknown — not stated by the source
Operating voltage	5 V	5 V
Operational conditions3 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °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	-300 - 3000 m	-1000 - 10000 m
Non-operating altitudeDiffers	-300 - 12000 m	-1400 - 50000 m
Operating shockKnown for one	70 G	Unknown — not stated by the source
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	101.5 mm	Unknown — not stated by the source
DepthKnown for one	147 mm	Unknown — not stated by the source
HeightKnown for one	26.1 mm	Unknown — not stated by the source
WeightKnown for one	610 g	Unknown — not stated by the source
Other features1 differ
Dimensions (WxDxH)Differs	101.5 x 147 x 26.1 mm	69.8 x 9.3 x 100 mm
Drive device, transfer rateKnown for one	175 MB/s	Unknown — not stated by the source
Drive ready timeKnown for one	12 s	Unknown — not stated by the source
Internal	Yes	Yes
Maximum data transfer rateKnown for one	300 Mbit/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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