Product comparison · 2 internal hard drives

Dell 500GB Near Line SAS 6Gbps vs Seagate Momentus ST640LM020 internal hard drive

7specifications compared
4differ
3identical
22known for one product only

Key differences

HDD capacity
- 500GB Near Line SAS 6Gbps:500 GB
- Momentus ST640LM020 internal hard drive:640 GB
HDD speed
- 500GB Near Line SAS 6Gbps:7200 RPM
- Momentus ST640LM020 internal hard drive:5400 RPM
Interface
- 500GB Near Line SAS 6Gbps:SAS
- Momentus ST640LM020 internal hard drive:Serial ATA II
Data transfer rate
- 500GB Near Line SAS 6Gbps:6 Gbit/s
- Momentus ST640LM020 internal hard drive:3 Gbit/s

Side by side

Differences highlightedShow differences only

Comparison of 500GB Near Line SAS 6Gbps, ST640LM020
29 specifications	A Dell 500GB Near Line SAS 6Gbps View product	B Seagate Momentus ST640LM020 internal hard drive Model ST640LM020 View product
Features3 differ
HDD capacityDiffers	500 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	SAS	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	Laptop
Access timeKnown for one	Unknown — not stated by the source	4 ms
Average 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
Poweridentical
Power consumption (standby)Known for one	Unknown — not stated by the source	0.2 W
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	2.3 W
Power consumption (write)Known for one	Unknown — not stated by the source	2.3 W
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	5 - 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
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Other features1 differ
Data transfer rateDiffers	6 Gbit/s	3 Gbit/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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