Product comparison · 2 internal hard drives

Seagate Barracuda ES.2 SATA 250GB vs Seagate Cheetah 15K.5 Ultra320 SCSI 146.8GB

Key differences

HDD capacity
- Barracuda ES.2 SATA 250GB:250 GB
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:146.8 GB
HDD speed
- Barracuda ES.2 SATA 250GB:7200 RPM
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:15000 RPM
Interface
- Barracuda ES.2 SATA 250GB:Serial ATA
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:SCSI
Storage drive buffer size
- Barracuda ES.2 SATA 250GB:32 MB
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:16 MB
Read seek time
- Barracuda ES.2 SATA 250GB:8.5 ms
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:3.5 ms
Write seek time
- Barracuda ES.2 SATA 250GB:9.5 ms
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:4 ms
Average latency
- Barracuda ES.2 SATA 250GB:4.16 ms
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:2 ms
Width
- Barracuda ES.2 SATA 250GB:101.6 mm
- Cheetah 15K.5 Ultra320 SCSI 146.8GB:101.8 mm

Differences highlightedShow differences only

Comparison of Barracuda ES.2 SATA 250GB, Cheetah 15K.5 Ultra320 SCSI 146.8GB
12 specifications	A Seagate Barracuda ES.2 SATA 250GB View product	B Seagate Cheetah 15K.5 Ultra320 SCSI 146.8GB View product
Features7 differ
HDD capacityDiffers	250 GB	146.8 GB
HDD speedDiffers	7200 RPM	15000 RPM
InterfaceDiffers	Serial ATA	SCSI
Storage drive buffer sizeDiffers	32 MB	16 MB
Read seek timeDiffers	8.5 ms	3.5 ms
Write seek timeDiffers	9.5 ms	4 ms
Average latencyDiffers	4.16 ms	2 ms
Weight & dimensions2 differ
WidthDiffers	101.6 mm	101.8 mm
WeightDiffers	518 g	839 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.