Product comparison · 2 internal hard drives

Seagate Momentus XT 320GB vs Seagate Desktop HDD ST3500830A internal hard drive

13specifications compared
10differ
3identical
12known for one product only

Key differences

HDD capacity
- Momentus XT 320GB:320 GB
- Desktop HDD ST3500830A internal hard drive:500 GB
Interface
- Momentus XT 320GB:Serial ATA
- Desktop HDD ST3500830A internal hard drive:Ultra-ATA/100
Storage drive buffer size
- Momentus XT 320GB:32 MB
- Desktop HDD ST3500830A internal hard drive:8 MB
Write seek time
- Momentus XT 320GB:13 ms
- Desktop HDD ST3500830A internal hard drive:12 ms
Average latency
- Momentus XT 320GB:4.17 ms
- Desktop HDD ST3500830A internal hard drive:4.16 ms
Start-up current
- Momentus XT 320GB:1 A
- Desktop HDD ST3500830A internal hard drive:2.80 A
Width
- Momentus XT 320GB:70.1 mm
- Desktop HDD ST3500830A internal hard drive:147 mm
Depth
- Momentus XT 320GB:100.5 mm
- Desktop HDD ST3500830A internal hard drive:101.6 mm

Side by side

Differences highlightedShow differences only

Comparison of Momentus XT 320GB, ST3500830A
25 specifications	A Seagate Momentus XT 320GB View product	B Seagate Desktop HDD ST3500830A internal hard drive Model ST3500830A View product
Features5 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA	Ultra-ATA/100
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	32 MB	8 MB
Read seek time	11 ms	11 ms
Write seek timeDiffers	13 ms	12 ms
Average latencyDiffers	4.17 ms	4.16 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	700000 h
Power1 differ
Power consumption (typical)Known for one	1.1 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.8 W	Unknown — not stated by the source
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Start-up currentDiffers	1 A	2.80 A
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
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
Weight & dimensions4 differ
WidthDiffers	70.1 mm	147 mm
DepthDiffers	100.5 mm	101.6 mm
HeightDiffers	9.7 mm	26.1 mm
WeightDiffers	105 g	635 g
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Flash memoryKnown for one	4096 MB	Unknown — not stated by the source
Internal	Yes	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.

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