Product comparison · 2 internal hard drives

Seagate 640GB SATA II vs Seagate ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS

16specifications compared
15differ
1identical
20known for one product only

Key differences

HDD capacity
- 640GB SATA II:640 GB
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:2 TB
HDD speed
- 640GB SATA II:5400 RPM
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:7200 RPM
HDD size
- 640GB SATA II:2.5"
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:3.5"
Interface
- 640GB SATA II:Serial ATA II
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:Serial ATA III
Storage drive buffer size
- 640GB SATA II:8 MB
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:64 MB
Operating voltage
- 640GB SATA II:5 V
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:5 / 12 V
Operating temperature (T-T)
- 640GB SATA II:5 - 55 °C
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:0 - 60 °C
Operating relative humidity (H-H)
- 640GB SATA II:10 - 90%
- ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS:5 - 73%

Side by side

Differences highlightedShow differences only

Comparison of 640GB SATA II, ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS
36 specifications	A Seagate 640GB SATA II View product	B Seagate ES.2 2TB 3.5" 7200rpm SATA 6Gb/s FIPS View product
Features5 differ
HDD capacityDiffers	640 GB	2 TB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA II	Serial ATA III
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	8 MB	64 MB
Read seek timeKnown for one	12 ms	Unknown — not stated by the source
Average latencyKnown for one	5.6 ms	Unknown — not stated by the source
SMART technologyKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Power consumption (idle)Known for one	0.7 W	Unknown — not stated by the source
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
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Operational conditions5 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Operating relative humidity (H-H)Differs	10 - 90%	5 - 73%
Storage relative humidity (H-H)Differs	5 - 95%	5 - 90%
Operating vibrationKnown for one	1.5 G	Unknown — not stated by the source
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	70 G
Non-operating shockDiffers	750 G	300 G
Weight & dimensions3 differ
WidthDiffers	69.8 mm	101.8 mm
DepthDiffers	100.3 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightKnown for one	107 g	Unknown — not stated by the source
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
InternalKnown for one	Unknown — not stated by the source	Yes
Number of products includedKnown for one	Unknown — not stated by the source	1 pc(s)
Security algorithmsKnown for one	Unknown — not stated by the source	FIPS 140-2
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

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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