Product comparison · 2 internal hard drives

Seagate 320GB Momentus 5400.5 HDD vs Seagate 500GB 2.5" SATA III

7specifications compared
3differ
4identical
27known for one product only

Key differences

HDD capacity
- 320GB Momentus 5400.5 HDD:320 GB
- 500GB 2.5" SATA III:500 GB
Interface
- 320GB Momentus 5400.5 HDD:Serial ATA
- 500GB 2.5" SATA III:Serial ATA III
Operating temperature (T-T)
- 320GB Momentus 5400.5 HDD:0 - 60 °C
- 500GB 2.5" SATA III:5 - 55 °C

Side by side

Differences highlightedShow differences only

Comparison of 320GB Momentus 5400.5 HDD, 500GB 2.5" SATA III
34 specifications	A Seagate 320GB Momentus 5400.5 HDD View product	B Seagate 500GB 2.5" SATA III View product
Features2 differ
HDD capacityDiffers	320 GB	500 GB
InterfaceDiffers	Serial ATA	Serial ATA III
HDD number of headsKnown for one	4	Unknown — not stated by the source
Read seek timeKnown for one	14 ms	Unknown — not stated by the source
Average latencyKnown for one	5.6 ms	Unknown — not stated by the source
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	500000 h	Unknown — not stated by the source
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
TypeKnown for one	Unknown — not stated by the source	HDD
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Poweridentical
Start-up currentKnown for one	1 A	Unknown — not stated by the source
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Operating shockKnown for one	350 G	Unknown — not stated by the source
Non-operating shockKnown for one	1000 G	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Weight & dimensionsidentical
WidthKnown for one	69.8 mm	Unknown — not stated by the source
DepthKnown for one	100.5 mm	Unknown — not stated by the source
HeightKnown for one	9.5 mm	Unknown — not stated by the source
WeightKnown for one	98.5 g	Unknown — not stated by the source
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Disks included quantityKnown for one	2 pc(s)	Unknown — not stated by the source
InternalKnown for one	Yes	Unknown — not stated by the source
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Package dimensions (W x D x H)Known for one	Unknown — not stated by the source	120.7 x 161 x 57.1 mm (4.75 x 6.34 x 2.25")
Package weight (imperial)Known for one	Unknown — not stated by the source	0.222 kg (0.49 lbs)

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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