Product comparison · 2 internal hard drives

HP 461289-001 internal hard drive vs Seagate Constellation ST91000640NS-20PK internal hard drive

7specifications compared
4differ
3identical
18known for one product only

Key differences

The HP 461289-001 internal hard drive has 1" more HDD size than the Seagate Constellation ST91000640NS-20PK internal hard drive (3.5" vs 2.5"). The Seagate Constellation ST91000640NS-20PK internal hard drive has 3 Gbit/s more data transfer rate than the HP 461289-001 internal hard drive (6 Gbit/s vs 3 Gbit/s). Interface: SAS on the HP 461289-001 internal hard drive, Serial ATA III on the Seagate Constellation ST91000640NS-20PK internal hard drive. Operating voltage: 5 / 12 V on the HP 461289-001 internal hard drive, 5 V on the Seagate Constellation ST91000640NS-20PK internal hard drive.

HDD size
- 461289-001 internal hard drive:3.5"
- Constellation ST91000640NS-20PK internal hard drive:2.5"
Interface
- 461289-001 internal hard drive:SAS
- Constellation ST91000640NS-20PK internal hard drive:Serial ATA III
Operating voltage
- 461289-001 internal hard drive:5 / 12 V
- Constellation ST91000640NS-20PK internal hard drive:5 V
Data transfer rate
- 461289-001 internal hard drive:3 Gbit/s
- Constellation ST91000640NS-20PK internal hard drive:6 Gbit/s

Side by side

Differences highlightedShow differences only

Comparison of 461289-001, ST91000640NS-20PK
25 specifications	A HP 461289-001 internal hard drive Model 461289-001 View product	B Seagate Constellation ST91000640NS-20PK internal hard drive Model ST91000640NS-20PK View product
Features2 differ
HDD capacity	1 TB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA III
Type	HDD	HDD
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	64 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	9.5 ms
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1400000 h
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	5.21 W
Power consumption (idle)Known for one	Unknown — not stated by the source	3.31 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 60 °C
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	3 G
Operating shockKnown for one	Unknown — not stated by the source	70 G
Non-operating shockKnown for one	Unknown — not stated by the source	400 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	70.1 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightKnown for one	Unknown — not stated by the source	15 mm
WeightKnown for one	Unknown — not stated by the source	200 g
Packaging dataidentical
Quantity per packKnown for one	Unknown — not stated by the source	20 pc(s)
Other features1 differ
Data transfer rateDiffers	3 Gbit/s	6 Gbit/s

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.

More internal hard drive comparisons

All internal hard drive comparisons