Product comparison · 2 internal hard drives

Seagate Momentus 750Gb SATA II vs Seagate Desktop HDD ST3500830A internal hard drive

Key differences

HDD capacity
- Momentus 750Gb SATA II:750 GB
- Desktop HDD ST3500830A internal hard drive:500 GB
Interface
- Momentus 750Gb SATA II:Serial ATA II
- Desktop HDD ST3500830A internal hard drive:Ultra-ATA/100
Storage drive buffer size
- Momentus 750Gb SATA II:16 MB
- Desktop HDD ST3500830A internal hard drive:8 MB
Write seek time
- Momentus 750Gb SATA II:13 ms
- Desktop HDD ST3500830A internal hard drive:12 ms
Average latency
- Momentus 750Gb SATA II:4.2 ms
- Desktop HDD ST3500830A internal hard drive:4.16 ms
Width
- Momentus 750Gb SATA II:69.8 mm
- Desktop HDD ST3500830A internal hard drive:147 mm
Depth
- Momentus 750Gb SATA II:100.3 mm
- Desktop HDD ST3500830A internal hard drive:101.6 mm
Height
- Momentus 750Gb SATA II:9.5 mm
- Desktop HDD ST3500830A internal hard drive:26.1 mm

Differences highlightedShow differences only

Comparison of Momentus 750Gb SATA II, ST3500830A
18 specifications	A Seagate Momentus 750Gb SATA II View product	B Seagate Desktop HDD ST3500830A internal hard drive Model ST3500830A View product
Features5 differ
HDD capacityDiffers	750 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA II	Ultra-ATA/100
Component forKnown for one	Laptop	Unknown — not stated by the source
Storage drive buffer sizeDiffers	16 MB	8 MB
Read seek time	11 ms	11 ms
Write seek timeDiffers	13 ms	12 ms
Average latencyDiffers	4.2 ms	4.16 ms
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	700000 h
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Start-up currentKnown for one	Unknown — not stated by the source	2.80 A
Operational conditionsidentical
Operating shockKnown for one	350 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	69.8 mm	147 mm
DepthDiffers	100.3 mm	101.6 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	115 g	635 g
Other featuresidentical
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.