Product comparison · 2 internal hard drives

HP 20-GB, UATA, 100/7200 vs Seagate Barracuda 7200.11 SATA 3Gb/s 1TB

Key differences

HDD capacity
- 20-GB, UATA, 100/7200:20 GB
- Barracuda 7200.11 SATA 3Gb/s 1TB:1 TB
Interface
- 20-GB, UATA, 100/7200:Ultra-ATA/100
- Barracuda 7200.11 SATA 3Gb/s 1TB:Serial ATA
Weight
- 20-GB, UATA, 100/7200:907 g
- Barracuda 7200.11 SATA 3Gb/s 1TB:640 g

Differences highlightedShow differences only

Comparison of 20-GB, UATA, 100/7200, Barracuda 7200.11 SATA 3Gb/s 1TB
17 specifications	A HP 20-GB, UATA, 100/7200 View product	B Seagate Barracuda 7200.11 SATA 3Gb/s 1TB View product
Features2 differ
HDD capacityDiffers	20 GB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Ultra-ATA/100	Serial ATA
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	32 MB
Read seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	10 ms
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	750000 h
TypeKnown for one	HDD	Unknown — not stated by the source
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Weight & dimensions1 differ
WeightDiffers	907 g	640 g
Other featuresidentical
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.6 x 146.99 x 26.11 mm
Drive device, transfer rateKnown for one	Unknown — not stated by the source	300 MB/s
Internal	Yes	Yes
Plug and PlayKnown for one	Unknown — not stated by the source	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.