Product comparison · 2 internal hard drives

Samsung Spinpoint M HN-M640MBB internal hard drive vs Samsung Spinpoint M M8 internal hard drive

26specifications compared
2differ
24identical
10known for one product only

Key differences

Interface
- Spinpoint M HN-M640MBB internal hard drive:Serial ATA III
- Spinpoint M M8 internal hard drive:Serial ATA II
Power consumption (typical)
- Spinpoint M HN-M640MBB internal hard drive:2.2 W
- Spinpoint M M8 internal hard drive:2 W

Side by side

Differences highlightedShow differences only

Comparison of HN-M640MBB, M8
36 specifications	A Samsung Spinpoint M HN-M640MBB internal hard drive Model HN-M640MBB View product	B Samsung Spinpoint M M8 internal hard drive Model M8 View product
Features1 differ
HDD capacity	640 GB	640 GB
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	Serial ATA III	Serial ATA II
Storage drive buffer size	8 MB	8 MB
Average latency	5.6 ms	5.6 ms
Bytes per sectorKnown for one	1024	Unknown — not stated by the source
Write speedKnown for one	Unknown — not stated by the source	145 MB/s
Read speedKnown for one	Unknown — not stated by the source	300 MB/s
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Power1 differ
Power consumption (typical)Differs	2.2 W	2 W
Power consumption (standby)	0.2 W	0.2 W
Power consumption (idle)	0.7 W	0.7 W
Power consumption (read)	2.2 W	2.2 W
Power consumption (write)	2.2 W	2.2 W
Operating voltage	5 V	5 V
Start-up current	1 A	1 A
Operational conditionsidentical
Operating temperature (T-T)	5 - 55 °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 altitude	-300 - 3000 m	-300 - 3000 m
Non-operating altitude	-400 - 15000 m	-400 - 15000 m
Operating shock	325 G	325 G
Non-operating shock	750 G	750 G
Operating vibrationKnown for one	Unknown — not stated by the source	1.5 G
Packaging contentidentical
User guideKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
Width	69.8 mm	69.8 mm
Depth	100.3 mm	100.3 mm
Height	9.5 mm	9.5 mm
Weight	107 g	107 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	84717050	Unknown — not stated by the source
Other featuresidentical
HDD transfer rateKnown for one	300 Mbit/s	Unknown — not stated by the source
Drive ready time	4 s	4 s
Windows operating systems supportedKnown for one	Yes	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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