Product comparison · 2 internal hard drives

Samsung SpinPoint F1 HD753LJ internal hard drive vs Samsung HM251JI - 250GB + 50PK Kit

23specifications compared
17differ
6identical
12known for one product only

Key differences

HDD capacity
- SpinPoint F1 HD753LJ internal hard drive:750 GB
- HM251JI - 250GB + 50PK Kit:250 GB
HDD speed
- SpinPoint F1 HD753LJ internal hard drive:7200 RPM
- HM251JI - 250GB + 50PK Kit:5400 RPM
HDD size
- SpinPoint F1 HD753LJ internal hard drive:3.5"
- HM251JI - 250GB + 50PK Kit:2.5"
Interface
- SpinPoint F1 HD753LJ internal hard drive:Serial ATA II
- HM251JI - 250GB + 50PK Kit:Serial ATA
Storage drive buffer size
- SpinPoint F1 HD753LJ internal hard drive:32 MB
- HM251JI - 250GB + 50PK Kit:8 MB
Average seek time
- SpinPoint F1 HD753LJ internal hard drive:8.9 ms
- HM251JI - 250GB + 50PK Kit:12 ms
Power consumption (standby)
- SpinPoint F1 HD753LJ internal hard drive:1.2 W
- HM251JI - 250GB + 50PK Kit:0.25 W
Operating voltage
- SpinPoint F1 HD753LJ internal hard drive:5 / 12 V
- HM251JI - 250GB + 50PK Kit:5 V

Side by side

Differences highlightedShow differences only

Comparison of HD753LJ, HM251JI - 250GB + 50PK Kit
35 specifications	A Samsung SpinPoint F1 HD753LJ internal hard drive Model HD753LJ View product	B Samsung HM251JI - 250GB + 50PK Kit View product
Features6 differ
HDD capacityDiffers	750 GB	250 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	Serial ATA
Storage drive buffer sizeDiffers	32 MB	8 MB
Average seek timeDiffers	8.9 ms	12 ms
Average latencyKnown for one	4.17 ms	Unknown — not stated by the source
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Power2 differ
Power consumption (standby)Differs	1.2 W	0.25 W
Power consumption (off)Known for one	Unknown — not stated by the source	0.2 W
Operating voltageDiffers	5 / 12 V	5 V
Power consumption (typical)Known for one	7.7 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	1.2 W	Unknown — not stated by the source
Operational conditions4 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Operating vibrationKnown for one	Unknown — not stated by the source	0.7 G
Non-operating altitudeDiffers	-300 - 12000 m	-400 - 15000 m
Operating shockDiffers	70 G	325 G
Non-operating shockDiffers	350 G	1000 G
Weight & dimensions4 differ
WidthDiffers	101.5 mm	69.8 mm
DepthDiffers	147 mm	100 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	640 g	102 g
Other features1 differ
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	69.85 x 100 x 9.5 mm
Product colourKnown for one	Unknown — not stated by the source	Black
Data transfer rateKnown for one	Unknown — not stated by the source	1.5 Gbit/s
Drive device, transfer rateKnown for one	Unknown — not stated by the source	150 MB/s
Drive ready timeDiffers	12 s	4 s
Maximum data transfer rateKnown for one	Unknown — not stated by the source	826 Mbit/s
Power requirementsKnown for one	+5V±5%, +12V±10%	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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