Product comparison · 2 internal hard drives

Seagate 7200.12 320GB vs Seagate Constellation 500-GB SED

16specifications compared
8differ
8identical
17known for one product only

Key differences

The Seagate Constellation 500-GB SED has 180 GB more HDD capacity than the Seagate 7200.12 320GB (500 GB vs 320 GB). The Seagate 7200.12 320GB has 1" more HDD size than the Seagate Constellation 500-GB SED (3.5" vs 2.5"). The Seagate 7200.12 320GB has 31.6 mm more width than the Seagate Constellation 500-GB SED (101.6 mm vs 70 mm). Operating voltage: 5 / 12 V on the Seagate 7200.12 320GB, 5 V on the Seagate Constellation 500-GB SED. Operating temperature (T-T): 0 - 60 °C on the Seagate 7200.12 320GB, 5 - 55 °C on the Seagate Constellation 500-GB SED.

HDD capacity
- 7200.12 320GB:320 GB
- Constellation 500-GB SED:500 GB
HDD size
- 7200.12 320GB:3.5"
- Constellation 500-GB SED:2.5"
Operating voltage
- 7200.12 320GB:5 / 12 V
- Constellation 500-GB SED:5 V
Operating temperature (T-T)
- 7200.12 320GB:0 - 60 °C
- Constellation 500-GB SED:5 - 55 °C
Width
- 7200.12 320GB:101.6 mm
- Constellation 500-GB SED:70 mm
Depth
- 7200.12 320GB:147 mm
- Constellation 500-GB SED:100.5 mm
Height
- 7200.12 320GB:20 mm
- Constellation 500-GB SED:14.8 mm
Weight
- 7200.12 320GB:622 g
- Constellation 500-GB SED:227 g

Side by side

Differences highlightedShow differences only

Comparison of 7200.12 320GB, Constellation 500-GB SED
33 specifications	A Seagate 7200.12 320GB View product	B Seagate Constellation 500-GB SED View product
Features2 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceKnown for one	Serial ATA	Unknown — not stated by the source
TypeKnown for one	HDD	Unknown — not stated by the source
Storage drive buffer size	16 MB	16 MB
Read seek time	8.5 ms	8.5 ms
Write seek time	9.5 ms	9.5 ms
Average latency	4.16 ms	4.16 ms
Bytes per sector	512	512
Track to track seek timeKnown for one	Unknown — not stated by the source	0.8 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1200000 h
Power1 differ
Power consumption (idle)Known for one	5 W	Unknown — not stated by the source
Power consumption (read)Known for one	6.57 W	Unknown — not stated by the source
Power consumption (write)Known for one	6.57 W	Unknown — not stated by the source
Operating voltageDiffers	5 / 12 V	5 V
Start-up currentKnown for one	2 A	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Operating shockKnown for one	70 G	Unknown — not stated by the source
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	101.6 mm	70 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	20 mm	14.8 mm
WeightDiffers	622 g	227 g
Other featuresidentical
Internal	Yes	Yes
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

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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