Product comparison · 2 internal hard drives

HP 1TB SATA-300 vs Seagate 640GB SATA II

5specifications compared
4differ
1identical
27known for one product only

Key differences

HDD capacity
- 1TB SATA-300:1 TB
- 640GB SATA II:640 GB
HDD speed
- 1TB SATA-300:7200 RPM
- 640GB SATA II:5400 RPM
HDD size
- 1TB SATA-300:3.5"
- 640GB SATA II:2.5"
Operating voltage
- 1TB SATA-300:5 / 12 V
- 640GB SATA II:5 V

Side by side

Differences highlightedShow differences only

Comparison of 1TB SATA-300, 640GB SATA II
32 specifications	A HP 1TB SATA-300 View product	B Seagate 640GB SATA II View product
Features3 differ
HDD capacityDiffers	1 TB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Read seek timeKnown for one	Unknown — not stated by the source	12 ms
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
TypeKnown for one	HDD	Unknown — not stated by the source
HDD interface transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Power1 differ
Power consumption (idle)Known for one	Unknown — not stated by the source	0.7 W
Power consumption (read)Known for one	Unknown — not stated by the source	2.2 W
Power consumption (write)Known for one	Unknown — not stated by the source	2.2 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	1 A
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 relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
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	750 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.3 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	107 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Drive ready timeKnown for one	Unknown — not stated by the source	4 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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