Product comparison · 2 internal hard drives

HP 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD vs Seagate 500GB 2.5" SATA II

5specifications compared
4differ
1identical
21known for one product only

Key differences

HDD speed
- 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD:7200 RPM
- 500GB 2.5" SATA II:5400 RPM
HDD size
- 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD:3.5"
- 500GB 2.5" SATA II:2.5"
Interface
- 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD:Serial ATA
- 500GB 2.5" SATA II:Serial ATA II
Operating voltage
- 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD:5 / 12 V
- 500GB 2.5" SATA II:5 V

Side by side

Differences highlightedShow differences only

Comparison of 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD, 500GB 2.5" SATA II
26 specifications	A HP 500GB SATA NCQ HDD SMART IV 3.5" 1st HDD View product	B Seagate 500GB 2.5" SATA II View product
Features3 differ
HDD capacity	500 GB	500 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA	Serial ATA II
TypeKnown for one	Unknown — not stated by the source	HDD
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	8 MB
HDD number of headsKnown for one	Unknown — not stated by the source	4
Average latencyKnown for one	Unknown — not stated by the source	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	600000
Power1 differ
Power consumption (standby)Known for one	Unknown — not stated by the source	0.22 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.81 W
Power consumption (read)Known for one	Unknown — not stated by the source	2.6 W
Power consumption (write)Known for one	Unknown — not stated by the source	2.85 W
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	Unknown — not stated by the source	1 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	350 G
Non-operating shockKnown for one	Unknown — not stated by the source	1000 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	69.8 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	98.8 g
Other featuresidentical
InternalKnown 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.

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