Product comparison · 2 internal hard drives

HP 20-GB, UATA, 100/7200 vs Seagate Momentus 5400.5 SATA 320GB

7specifications compared
6differ
1identical
8known for one product only

Key differences

The Seagate Momentus 5400.5 SATA 320GB has 300 GB more HDD capacity than the HP 20-GB, UATA, 100/7200 (320 GB vs 20 GB). The HP 20-GB, UATA, 100/7200 has 1,800 RPM more HDD speed than the Seagate Momentus 5400.5 SATA 320GB (7200 RPM vs 5400 RPM). The HP 20-GB, UATA, 100/7200 has 1" more HDD size than the Seagate Momentus 5400.5 SATA 320GB (3.5" vs 2.5"). Interface: Ultra-ATA/100 on the HP 20-GB, UATA, 100/7200, Serial ATA on the Seagate Momentus 5400.5 SATA 320GB. Operating voltage: 5 / 12 V on the HP 20-GB, UATA, 100/7200, 5 V on the Seagate Momentus 5400.5 SATA 320GB.

HDD capacity
- 20-GB, UATA, 100/7200:20 GB
- Momentus 5400.5 SATA 320GB:320 GB
HDD speed
- 20-GB, UATA, 100/7200:7200 RPM
- Momentus 5400.5 SATA 320GB:5400 RPM
HDD size
- 20-GB, UATA, 100/7200:3.5"
- Momentus 5400.5 SATA 320GB:2.5"
Interface
- 20-GB, UATA, 100/7200:Ultra-ATA/100
- Momentus 5400.5 SATA 320GB:Serial ATA
Operating voltage
- 20-GB, UATA, 100/7200:5 / 12 V
- Momentus 5400.5 SATA 320GB:5 V
Weight
- 20-GB, UATA, 100/7200:907 g
- Momentus 5400.5 SATA 320GB:98.5 g

Side by side

Differences highlightedShow differences only

Comparison of 20-GB, UATA, 100/7200, Momentus 5400.5 SATA 320GB
15 specifications	A HP 20-GB, UATA, 100/7200 View product	B Seagate Momentus 5400.5 SATA 320GB View product
Features4 differ
HDD capacityDiffers	20 GB	320 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Ultra-ATA/100	Serial ATA
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	14 ms
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
TypeKnown for one	HDD	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Weight & dimensions1 differ
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightDiffers	907 g	98.5 g

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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