Product comparison · 2 internal hard drives

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

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

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 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
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

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.