Product comparison · 2 internal hard drives

Seagate 500GB 7200RPM HDD vs Seagate 640GB 2.5" SATA

Key differences

Differences highlightedShow differences only

Comparison of 500GB 7200RPM HDD, 640GB 2.5" SATA
26 specifications	A Seagate 500GB 7200RPM HDD View product	B Seagate 640GB 2.5" SATA View product
Features5 differ
HDD capacityDiffers	500 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
InterfaceDiffers	Serial ATA	Serial ATA II
TypeKnown for one	Unknown — not stated by the source	HDD
Component for	Laptop	Laptop
Storage drive buffer sizeDiffers	16 MB	8 MB
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Read seek time	11 ms	11 ms
Average latencyDiffers	4.17 ms	5.5 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Write seek timeKnown for one	13 ms	Unknown — not stated by the source
Poweridentical
Power consumption (idle)Known for one	Unknown — not stated by the source	0.68 W
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Operating shock	350 G	350 G
Non-operating shockDiffers	1000 G	800 G
Weight & dimensions1 differ
Width	69.8 mm	69.8 mm
Depth	100.3 mm	100.3 mm
Height	9.5 mm	9.5 mm
WeightDiffers	110 g	100 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	84717050
Other featuresidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Internal	Yes	Yes
Acoustic pressure emissions	26 dB	26 dB

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.