Product comparison · 2 internal hard drives

Seagate 640GB SATA II vs Seagate Enterprise Performance

18specifications compared
14differ
4identical
21known for one product only

Key differences

HDD capacity
- 640GB SATA II:640 GB
- Enterprise Performance:300 GB
HDD speed
- 640GB SATA II:5400 RPM
- Enterprise Performance:10000 RPM
Interface
- 640GB SATA II:Serial ATA II
- Enterprise Performance:SAS
Storage drive buffer size
- 640GB SATA II:8 MB
- Enterprise Performance:16 MB
Average latency
- 640GB SATA II:5.6 ms
- Enterprise Performance:3 ms
Power consumption (idle)
- 640GB SATA II:0.7 W
- Enterprise Performance:3.48 W
Operating vibration
- 640GB SATA II:1.5 G
- Enterprise Performance:0.5 G
Operating shock
- 640GB SATA II:325 G
- Enterprise Performance:25 G

Side by side

Differences highlightedShow differences only

Comparison of 640GB SATA II, Enterprise Performance
39 specifications	A Seagate 640GB SATA II View product	B Seagate Enterprise Performance View product
Features5 differ
HDD capacityDiffers	640 GB	300 GB
HDD speedDiffers	5400 RPM	10000 RPM
InterfaceDiffers	Serial ATA II	SAS
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	16 MB
Read seek timeKnown for one	12 ms	Unknown — not stated by the source
Average latencyDiffers	5.6 ms	3 ms
SMART technologyKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Power consumption (idle)Differs	0.7 W	3.48 W
Power consumption (read)Known for one	2.2 W	Unknown — not stated by the source
Power consumption (write)Known for one	2.2 W	Unknown — not stated by the source
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Power consumption (typical)Known for one	Unknown — not stated by the source	3.73 W
Operational conditions3 differ
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating vibrationDiffers	1.5 G	0.5 G
Operating altitudeKnown for one	-300 - 3000 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-400 - 15000 m	Unknown — not stated by the source
Operating shockDiffers	325 G	25 G
Non-operating shockDiffers	750 G	300 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	2.4 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	70 mm
DepthDiffers	100.3 mm	100.5 mm
HeightDiffers	9.5 mm	14.8 mm
WeightDiffers	107 g	227 g
Packaging dataidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Other features1 differ
Data transfer rateDiffers	3 Gbit/s	6 Gbit/s
Drive ready timeKnown for one	4 s	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Chrome
Transfer rateKnown for one	Unknown — not stated by the source	600 MB/s
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Other operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Sustained data rateKnown for one	Unknown — not stated by the source	124 MB/s

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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