Product comparison · 2 internal hard drives

Seagate Cheetah 15K.5 SAS 300GB vs Seagate Momentus 5400.3 SATA 60GB

Key differences

HDD capacity
- Cheetah 15K.5 SAS 300GB:300 GB
- Momentus 5400.3 SATA 60GB:60 GB
HDD speed
- Cheetah 15K.5 SAS 300GB:15000 RPM
- Momentus 5400.3 SATA 60GB:5400 RPM
Interface
- Cheetah 15K.5 SAS 300GB:SAS
- Momentus 5400.3 SATA 60GB:Serial ATA
Read seek time
- Cheetah 15K.5 SAS 300GB:3.5 ms
- Momentus 5400.3 SATA 60GB:11 ms
Write seek time
- Cheetah 15K.5 SAS 300GB:4 ms
- Momentus 5400.3 SATA 60GB:13 ms
Average latency
- Cheetah 15K.5 SAS 300GB:2 ms
- Momentus 5400.3 SATA 60GB:5.6 ms
Width
- Cheetah 15K.5 SAS 300GB:101.8 mm
- Momentus 5400.3 SATA 60GB:69.8 mm
Depth
- Cheetah 15K.5 SAS 300GB:147 mm
- Momentus 5400.3 SATA 60GB:100.5 mm

Differences highlightedShow differences only

Comparison of Cheetah 15K.5 SAS 300GB, Momentus 5400.3 SATA 60GB
15 specifications	A Seagate Cheetah 15K.5 SAS 300GB View product	B Seagate Momentus 5400.3 SATA 60GB View product
Features6 differ
HDD capacityDiffers	300 GB	60 GB
HDD speedDiffers	15000 RPM	5400 RPM
HDD sizeKnown for one	3.5"	Unknown — not stated by the source
InterfaceDiffers	SAS	Serial ATA
Read seek timeDiffers	3.5 ms	11 ms
Write seek timeDiffers	4 ms	13 ms
Average latencyDiffers	2 ms	5.6 ms
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
Poweridentical
Operating voltageKnown for one	5 / 12 V	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.8 mm	69.8 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	26.1 mm	9.5 mm
WeightDiffers	839 g	96 g
Other featuresidentical
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.