Product comparison · 2 internal hard drives

Dell 400-18615_NOB internal hard drive vs Seagate Momentus ST9120822A-RFB internal hard drive

7specifications compared
5differ
2identical
16known for one product only

Key differences

HDD capacity
- 400-18615_NOB internal hard drive:500 GB
- Momentus ST9120822A-RFB internal hard drive:120 GB
HDD speed
- 400-18615_NOB internal hard drive:7200 RPM
- Momentus ST9120822A-RFB internal hard drive:5400 RPM
HDD size
- 400-18615_NOB internal hard drive:3.5"
- Momentus ST9120822A-RFB internal hard drive:2.5"
Interface
- 400-18615_NOB internal hard drive:Serial ATA
- Momentus ST9120822A-RFB internal hard drive:Ultra-ATA/100
Component for
- 400-18615_NOB internal hard drive:PC
- Momentus ST9120822A-RFB internal hard drive:Laptop

Side by side

Differences highlightedShow differences only

Comparison of 400-18615_NOB, ST9120822A-RFB
23 specifications	A Dell 400-18615_NOB internal hard drive Model 400-18615_NOB View product	B Seagate Momentus ST9120822A-RFB internal hard drive Model ST9120822A-RFB View product
Features5 differ
HDD capacityDiffers	500 GB	120 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Component forDiffers	PC	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
HDD number of headsKnown for one	Unknown — not stated by the source	3
Access timeKnown for one	Unknown — not stated by the source	12.5 ms
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Poweridentical
Power consumption (standby)Known for one	Unknown — not stated by the source	0.2 W
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.2 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	102 g
Other featuresidentical
HDD transfer rateKnown for one	Unknown — not stated by the source	100 Mbit/s
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	69.85 x 100.2 x 9.5 mm
InternalKnown for one	Unknown — not stated by the source	Yes
Sustained data rateKnown for one	Unknown — not stated by the source	44 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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