Product comparison · 2 internal hard drives

Samsung M7E 320GB vs Seagate 640GB 2.5" SATA

15specifications compared
8differ
7identical
25known for one product only

Key differences

HDD capacity
- M7E 320GB:320 GB
- 640GB 2.5" SATA:640 GB
Operating temperature (T-T)
- M7E 320GB:5 - 55 °C
- 640GB 2.5" SATA:0 - 60 °C
Storage temperature (T-T)
- M7E 320GB:-40 - 7 °C
- 640GB 2.5" SATA:-40 - 70 °C
Operating shock
- M7E 320GB:400 G
- 640GB 2.5" SATA:350 G
Non-operating shock
- M7E 320GB:900 G
- 640GB 2.5" SATA:800 G
Depth
- M7E 320GB:100 mm
- 640GB 2.5" SATA:100.3 mm
Weight
- M7E 320GB:105 g
- 640GB 2.5" SATA:100 g
Acoustic pressure emissions
- M7E 320GB:2.6 dB
- 640GB 2.5" SATA:26 dB

Side by side

Differences highlightedShow differences only

Comparison of M7E 320GB, 640GB 2.5" SATA
40 specifications	A Samsung M7E 320GB View product	B Seagate 640GB 2.5" SATA View product
Features1 differ
HDD capacityDiffers	320 GB	640 GB
HDD speed	5400 RPM	5400 RPM
Storage drive buffer size	8 MB	8 MB
Average seek timeKnown for one	12 ms	Unknown — not stated by the source
Bytes per sector	512	512
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
InterfaceKnown for one	Unknown — not stated by the source	Serial ATA II
TypeKnown for one	Unknown — not stated by the source	HDD
Component forKnown for one	Unknown — not stated by the source	Laptop
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Read seek timeKnown for one	Unknown — not stated by the source	11 ms
Average latencyKnown for one	Unknown — not stated by the source	5.5 ms
Poweridentical
Power consumption (standby)Known for one	0.25 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	0.85 W	Unknown — not stated by the source
Power consumption (off)Known for one	0.2 W	Unknown — not stated by the source
Operating voltage	5 V	5 V
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Power consumption (idle)Known for one	Unknown — not stated by the source	0.68 W
Operational conditions4 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Storage temperature (T-T)Differs	-40 - 7 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	8 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibrationKnown for one	10 G	Unknown — not stated by the source
Operating altitudeKnown for one	-300 - 3.000 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-400 - 15000 m	Unknown — not stated by the source
Operating shockDiffers	400 G	350 G
Non-operating shockDiffers	900 G	800 G
Weight & dimensions2 differ
Width	69.8 mm	69.8 mm
DepthDiffers	100 mm	100.3 mm
Height	9.5 mm	9.5 mm
WeightDiffers	105 g	100 g
Other features1 differ
Power requirementsKnown for one	Yes	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	69.85 x 100 x 9.5 mm	Unknown — not stated by the source
Drive device, transfer rateKnown for one	300 MB/s	Unknown — not stated by the source
Drive ready timeKnown for one	4 s	Unknown — not stated by the source
Internal	Yes	Yes
eSATAKnown for one	Yes	Unknown — not stated by the source
Acoustic pressure emissionsDiffers	2.6 dB	26 dB
Product colourKnown for one	Unknown — not stated by the source	Black
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717050

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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