Product comparison · 2 internal hard drives

Lenovo ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive vs Samsung Spinpoint M HM640JI internal hard drive

10specifications compared
8differ
2identical
17known for one product only

Key differences

HDD capacity
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:250 GB
- Spinpoint M HM640JI internal hard drive:640 GB
HDD speed
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:7200 RPM
- Spinpoint M HM640JI internal hard drive:5400 RPM
HDD size
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:3.5"
- Spinpoint M HM640JI internal hard drive:2.5"
Operating voltage
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:5 / 12 V
- Spinpoint M HM640JI internal hard drive:5 V
Width
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:101.6 mm
- Spinpoint M HM640JI internal hard drive:69.8 mm
Depth
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:147 mm
- Spinpoint M HM640JI internal hard drive:100.3 mm
Height
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:26.1 mm
- Spinpoint M HM640JI internal hard drive:9.5 mm
Weight
- ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive:440 g
- Spinpoint M HM640JI internal hard drive:119 g

Side by side

Differences highlightedShow differences only

Comparison of ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive, HM640JI
27 specifications	A Lenovo ThinkServer 250GB 7.2K Cabled 3.5" SATA Hard drive View product	B Samsung Spinpoint M HM640JI internal hard drive Model HM640JI View product
Features3 differ
HDD capacityDiffers	250 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	Serial ATA	Serial ATA
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 55 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating vibrationKnown for one	Unknown — not stated by the source	1.5 G
Operating altitudeKnown for one	Unknown — not stated by the source	-300 - 3000 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-400 - 15000 m
Operating shockKnown for one	Unknown — not stated by the source	325 G
Non-operating shockKnown for one	Unknown — not stated by the source	900 G
Weight & dimensions4 differ
WidthDiffers	101.6 mm	69.8 mm
DepthDiffers	147 mm	100.3 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	440 g	119 g
Other featuresidentical
Ethernet LANKnown for one	Unknown — not stated by the source	No
Fibre ChannelKnown for one	Unknown — not stated by the source	No
FireWire 400Known for one	Unknown — not stated by the source	No
FireWire 800Known for one	Unknown — not stated by the source	No
Internal	Yes	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	Unknown — not stated by the source	0
USB poweredKnown for one	Unknown — not stated by the source	No

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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