HP 1TB SATA (NCQ/Smart IV) 3.0Gb/s vs Seagate 1TB Barracuda

Comparison of 1TB SATA (NCQ/Smart IV) 3.0Gb/s, 1TB Barracuda

34 specifications	A HP 1TB SATA (NCQ/Smart IV) 3.0Gb/sView product	B Seagate 1TB BarracudaView product
Featuresidentical
HDD capacity	1 TB	1 TB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA II	Serial ATA II
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	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
Hot-swapKnown for one	No	—Unknown — not stated by the source
SMART technologyKnown for one	Yes	—Unknown — not stated by the source
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Start-up currentKnown for one	—Unknown — not stated by the source	2 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	—Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	—Unknown — not stated by the source	40 - 70 °C
Operating shockKnown for one	—Unknown — not stated by the source	70 G
Non-operating shockKnown for one	—Unknown — not stated by the source	300 G
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	101.6 mm
DepthKnown for one	—Unknown — not stated by the source	147 mm
HeightKnown for one	—Unknown — not stated by the source	26.1 mm
WeightKnown for one	—Unknown — not stated by the source	622 g
Other features1 differ
Ethernet LANKnown for one	—Unknown — not stated by the source	No
Dimensions (WxDxH)Known for one	—Unknown — not stated by the source	101.6 x 146.99 x 26.1 mm
Data transfer rateDiffers	3 Gbit/s	300 Gbit/s
Fibre ChannelKnown for one	—Unknown — not stated by the source	No
FireWire 400Known for one	—Unknown — not stated by the source	No
FireWire 800Known for one	—Unknown — not stated by the source	No
Internal	Yes	Yes
USB 2.0 ports quantityKnown for one	—Unknown — not stated by the source	0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	—Unknown — not stated by the source	0
USB poweredKnown for one	—Unknown — not stated by the source	No
Sustained data rateKnown for one	—Unknown — not stated by the source	125 MB/s
Acoustic pressure emissionsKnown for one	—Unknown — not stated by the source	2.5 dB
Windows operating systems supportedKnown for one	Yes	—Unknown — not stated by the source

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.