Product comparison · 2 internal hard drives

Lenovo 300GB 2.5" SATA II vs Seagate Momentus 5400.4 SATA 120GB

Key differences

HDD capacity
- 300GB 2.5" SATA II:300 GB
- Momentus 5400.4 SATA 120GB:120 GB
HDD speed
- 300GB 2.5" SATA II:10000 RPM
- Momentus 5400.4 SATA 120GB:5400 RPM
Interface
- 300GB 2.5" SATA II:Serial ATA II
- Momentus 5400.4 SATA 120GB:Serial ATA
Component for
- 300GB 2.5" SATA II:Server/workstation
- Momentus 5400.4 SATA 120GB:Laptop
Read seek time
- 300GB 2.5" SATA II:4.2 ms
- Momentus 5400.4 SATA 120GB:12 ms
Write seek time
- 300GB 2.5" SATA II:4.2 ms
- Momentus 5400.4 SATA 120GB:14 ms
Width
- 300GB 2.5" SATA II:42.6 mm
- Momentus 5400.4 SATA 120GB:69.8 mm
Depth
- 300GB 2.5" SATA II:4.85 mm
- Momentus 5400.4 SATA 120GB:100.2 mm

Differences highlightedShow differences only

Comparison of 300GB 2.5" SATA II, Momentus 5400.4 SATA 120GB
18 specifications	A Lenovo 300GB 2.5" SATA II View product	B Seagate Momentus 5400.4 SATA 120GB View product
Features6 differ
HDD capacityDiffers	300 GB	120 GB
HDD speedDiffers	10000 RPM	5400 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA II	Serial ATA
TypeKnown for one	HDD	Unknown — not stated by the source
Component forDiffers	Server/workstation	Laptop
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Read seek timeDiffers	4.2 ms	12 ms
Write seek timeDiffers	4.2 ms	14 ms
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	42.6 mm	69.8 mm
DepthDiffers	4.85 mm	100.2 mm
HeightDiffers	45.1 mm	9.5 mm
WeightDiffers	350 g	102 g
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Internal	Yes	Yes

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.