HP 3TB SATA III HDD vs Seagate Spinpoint 500GB

Comparison of 3TB SATA III HDD, Spinpoint 500GB

31 specifications	A HP 3TB SATA III HDDView product	B Seagate Spinpoint 500GBView product
Features1 differ
HDD capacityDiffers	3 TB	500 GB
Storage drive buffer sizeKnown for one	—Unknown — not stated by the source	16 MB
Write speedKnown for one	—Unknown — not stated by the source	144 MB/s
Read speedKnown for one	—Unknown — not stated by the source	125 MB/s
HDD number of headsKnown for one	—Unknown — not stated by the source	2
Read seek timeKnown for one	—Unknown — not stated by the source	11 ms
Write seek timeKnown for one	—Unknown — not stated by the source	12 ms
Bytes per sectorKnown for one	—Unknown — not stated by the source	4096
Start/stop cyclesKnown for one	—Unknown — not stated by the source	50000
TypeKnown for one	HDD	—Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	—Unknown — not stated by the source	6.19 W
Power consumption (standby)Known for one	—Unknown — not stated by the source	0.79 W
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
Packaging contentidentical
User guideKnown for one	—Unknown — not stated by the source	Yes
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	20 mm
WeightKnown for one	—Unknown — not stated by the source	415 g
Other featuresidentical
Depth (imperial)Known for one	—Unknown — not stated by the source	14.7 cm (5.79")
Height (imperial)Known for one	—Unknown — not stated by the source	2 cm (0.787")
InternalKnown for one	—Unknown — not stated by the source	Yes
Mac compatibilityKnown for one	—Unknown — not stated by the source	Yes
Width (imperial)Known for one	—Unknown — not stated by the source	10.2 cm (4")
Windows operating systems supportedKnown for one	—Unknown — not stated by the source	Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Wi
Mac operating systems supportedKnown 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.