Product comparison · 2 internal hard drives

Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) vs Acer 500GB SATA Hard disk

5specifications compared
4differ
1identical
12known for one product only

Key differences

The Acer 500GB SATA Hard disk has 380 GB more HDD capacity than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (500 GB vs 120 GB). The Acer 500GB SATA Hard disk has 3,000 RPM more HDD speed than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (7200 RPM vs 4200 RPM). The Acer 500GB SATA Hard disk has 8 MB more storage drive buffer size than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (16 MB vs 8 MB). Interface: Ultra-ATA/133 on the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option), Serial ATA II on the Acer 500GB SATA Hard disk.

HDD capacity
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):120 GB
- 500GB SATA Hard disk:500 GB
HDD speed
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):4200 RPM
- 500GB SATA Hard disk:7200 RPM
Interface
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):Ultra-ATA/133
- 500GB SATA Hard disk:Serial ATA II
Storage drive buffer size
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):8 MB
- 500GB SATA Hard disk:16 MB

Side by side

Differences highlightedShow differences only

Comparison of 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option), 500GB SATA Hard disk
17 specifications	A Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)View product	B Acer 500GB SATA Hard disk View product
Features4 differ
HDD capacityDiffers	120 GB	500 GB
HDD speedDiffers	4200 RPM	7200 RPM
InterfaceDiffers	Ultra-ATA/133	Serial ATA II
Storage drive buffer sizeDiffers	8 MB	16 MB
Average seek timeKnown for one	11 ms	Unknown — not stated by the source
Average latencyKnown for one	7.1 ms	Unknown — not stated by the source
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 55 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 65 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	70 mm	Unknown — not stated by the source
DepthKnown for one	100 mm	Unknown — not stated by the source
HeightKnown for one	9.5 mm	Unknown — not stated by the source
WeightKnown for one	99 g	Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	70 x 100 x 9.5 mm	Unknown — not stated by the source
Drive device, transfer rateKnown for one	380 MB/s	Unknown — not stated by the source
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V

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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