Product comparison · 2 internal hard drives

Acer 750GB 7.2k non Hotplug SATA HDD vs Seagate Constellation 500-GB SED

5specifications compared
3differ
2identical
20known for one product only

Key differences

The Acer 750GB 7.2k non Hotplug SATA HDD has 250 GB more HDD capacity than the Seagate Constellation 500-GB SED (750 GB vs 500 GB). The Acer 750GB 7.2k non Hotplug SATA HDD has 1" more HDD size than the Seagate Constellation 500-GB SED (3.5" vs 2.5"). Operating voltage: 5 / 12 V on the Acer 750GB 7.2k non Hotplug SATA HDD, 5 V on the Seagate Constellation 500-GB SED.

HDD capacity
- 750GB 7.2k non Hotplug SATA HDD:750 GB
- Constellation 500-GB SED:500 GB
HDD size
- 750GB 7.2k non Hotplug SATA HDD:3.5"
- Constellation 500-GB SED:2.5"
Operating voltage
- 750GB 7.2k non Hotplug SATA HDD:5 / 12 V
- Constellation 500-GB SED:5 V

Side by side

Differences highlightedShow differences only

Comparison of 750GB 7.2k non Hotplug SATA HDD, Constellation 500-GB SED
25 specifications	A Acer 750GB 7.2k non Hotplug SATA HDD View product	B Seagate Constellation 500-GB SED View product
Features2 differ
HDD capacityDiffers	750 GB	500 GB
HDD sizeDiffers	3.5"	2.5"
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 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
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 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	1200000 h
InterfaceKnown for one	Serial ATA	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 55 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	70 mm
DepthKnown for one	Unknown — not stated by the source	100.5 mm
HeightKnown for one	Unknown — not stated by the source	14.8 mm
WeightKnown for one	Unknown — not stated by the source	227 g
Other featuresidentical
Power requirementsKnown for one	Unknown — not stated by the source	12V
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	70 x 100.5 x 14.8 mm
Card reader integratedKnown for one	Unknown — not stated by the source	No
Data transfer rateKnown for one	Unknown — not stated by the source	6 Gbit/s
Sustained data rateKnown for one	Unknown — not stated by the source	0 MB/s
Hot-Plug supportKnown for one	No	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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