Product comparison · 2 internal hard drives

Dell 400GB SAS 3.5" vs Seagate Constellation ST500NM0001 internal hard drive

Key differences

HDD capacity
- 400GB SAS 3.5":400 GB
- Constellation ST500NM0001 internal hard drive:500 GB
HDD speed
- 400GB SAS 3.5":10000 RPM
- Constellation ST500NM0001 internal hard drive:7200 RPM

Differences highlightedShow differences only

Comparison of 400GB SAS 3.5", ST500NM0001
21 specifications	A Dell 400GB SAS 3.5"View product	B Seagate Constellation ST500NM0001 internal hard drive Model ST500NM0001 View product
Features2 differ
HDD capacityDiffers	400 GB	500 GB
HDD speedDiffers	10000 RPM	7200 RPM
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	64 MB
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
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	6.76 W
Start-up currentKnown for one	Unknown — not stated by the source	1.93 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101.8 mm
DepthKnown for one	Unknown — not stated by the source	147 mm
HeightKnown for one	Unknown — not stated by the source	26.1 mm
WeightKnown for one	Unknown — not stated by the source	610 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
Compatible productsKnown for one	DELL PowerEdge /PowerVault	Unknown — not stated by the source

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.