Product comparison · 2 internal hard drives

Samsung 640GB SATA II HDD vs Seagate Constellation 500-GB SED

16specifications compared
8differ
8identical
21known for one product only

Key differences

HDD capacity
- 640GB SATA II HDD:640 GB
- Constellation 500-GB SED:500 GB
Average latency
- 640GB SATA II HDD:4.17 ms
- Constellation 500-GB SED:4.16 ms
Operating temperature (T-T)
- 640GB SATA II HDD:0 - 60 °C
- Constellation 500-GB SED:5 - 55 °C
Width
- 640GB SATA II HDD:101.5 mm
- Constellation 500-GB SED:70 mm
Depth
- 640GB SATA II HDD:147 mm
- Constellation 500-GB SED:100.5 mm
Height
- 640GB SATA II HDD:26.1 mm
- Constellation 500-GB SED:14.8 mm
Weight
- 640GB SATA II HDD:610 g
- Constellation 500-GB SED:227 g
Dimensions (WxDxH)
- 640GB SATA II HDD:101.5 x 147 x 26.1 mm
- Constellation 500-GB SED:70 x 100.5 x 14.8 mm

Side by side

Differences highlightedShow differences only

Comparison of 640GB SATA II HDD, Constellation 500-GB SED
37 specifications	A Samsung 640GB SATA II HDD View product	B Seagate Constellation 500-GB SED View product
Features2 differ
HDD capacityDiffers	640 GB	500 GB
InterfaceKnown for one	Serial ATA II	Unknown — not stated by the source
Average seek timeKnown for one	8.9 ms	Unknown — not stated by the source
Average latencyDiffers	4.17 ms	4.16 ms
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Read seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	9.5 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Poweridentical
Power consumption (standby)Known for one	1 W	Unknown — not stated by the source
Power consumption (PowerSave)Known for one	1 W	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Operating relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating altitudeKnown for one	-300 - 3000 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	-300 - 12000 m	Unknown — not stated by the source
Operating shockKnown for one	70 G	Unknown — not stated by the source
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.5 mm	70 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	26.1 mm	14.8 mm
WeightDiffers	610 g	227 g
Other features1 differ
Dimensions (WxDxH)Differs	101.5 x 147 x 26.1 mm	70 x 100.5 x 14.8 mm
Drive device, transfer rateKnown for one	175 MB/s	Unknown — not stated by the source
Drive ready timeKnown for one	12 s	Unknown — not stated by the source
Maximum data transfer rateKnown for one	300 Mbit/s	Unknown — not stated by the source
Power requirementsKnown for one	Unknown — not stated by the source	12V
Card reader integratedKnown for one	Unknown — not stated by the source	No
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
Sustained data rateKnown for one	Unknown — not stated by the source	0 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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