Product comparison · 2 internal hard drives

Dell 750GB SATA2 3.5" vs Dell 80GB ATA 2.5"

Key differences

HDD capacity
- 750GB SATA2 3.5":750 GB
- 80GB ATA 2.5":80 GB
HDD speed
- 750GB SATA2 3.5":7200 RPM
- 80GB ATA 2.5":5400 RPM
HDD size
- 750GB SATA2 3.5":3.5"
- 80GB ATA 2.5":2.5"
Interface
- 750GB SATA2 3.5":Serial ATA II
- 80GB ATA 2.5":IDE/ATA
Storage drive buffer size
- 750GB SATA2 3.5":16 MB
- 80GB ATA 2.5":8 MB
Operating voltage
- 750GB SATA2 3.5":5 / 12 V
- 80GB ATA 2.5":5 V
Product colour
- 750GB SATA2 3.5":Silver
- 80GB ATA 2.5":Black
Drive device, transfer rate
- 750GB SATA2 3.5":300 MB/s
- 80GB ATA 2.5":100 MB/s

Differences highlightedShow differences only

Comparison of 750GB SATA2 3.5", 80GB ATA 2.5"
17 specifications	A Dell 750GB SATA2 3.5"View product	B Dell 80GB ATA 2.5"View product
Features5 differ
HDD capacityDiffers	750 GB	80 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	IDE/ATA
Storage drive buffer sizeDiffers	16 MB	8 MB
Average seek timeKnown for one	Unknown — not stated by the source	12 ms
Average latencyKnown for one	Unknown — not stated by the source	5.56 ms
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Component forKnown for one	Server/workstation	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	711 mm
DepthKnown for one	Unknown — not stated by the source	99 mm
HeightKnown for one	Unknown — not stated by the source	101 mm
Other features2 differ
Product colourDiffers	Silver	Black
Drive device, transfer rateDiffers	300 MB/s	100 MB/s
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.