Product comparison · 2 internal hard drives

Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) vs HP 73GB, U320 SCSI, 15K Rpm

5specifications compared
4differ
1identical
18known for one product only

Key differences

The Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) has 47 GB more HDD capacity than the HP 73GB, U320 SCSI, 15K Rpm (120 GB vs 73 GB). The HP 73GB, U320 SCSI, 15K Rpm has 10,800 RPM more HDD speed than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (15000 RPM vs 4200 RPM). The Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) has 7.2 ms more average seek time than the HP 73GB, U320 SCSI, 15K Rpm (11 ms vs 3.8 ms). Interface: Ultra-ATA/133 on the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option), Ultra320 SCSI on the HP 73GB, U320 SCSI, 15K Rpm.

HDD capacity
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):120 GB
- 73GB, U320 SCSI, 15K Rpm:73 GB
HDD speed
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):4200 RPM
- 73GB, U320 SCSI, 15K Rpm:15000 RPM
Interface
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):Ultra-ATA/133
- 73GB, U320 SCSI, 15K Rpm:Ultra320 SCSI
Average seek time
- 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option):11 ms
- 73GB, U320 SCSI, 15K Rpm:3.8 ms

Side by side

Differences highlightedShow differences only

Comparison of 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option), 73GB, U320 SCSI, 15K Rpm
23 specifications	A Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)View product	B HP 73GB, U320 SCSI, 15K Rpm View product
Features4 differ
HDD capacityDiffers	120 GB	73 GB
HDD speedDiffers	4200 RPM	15000 RPM
InterfaceDiffers	Ultra-ATA/133	Ultra320 SCSI
Storage drive buffer sizeKnown for one	8 MB	Unknown — not stated by the source
Average seek timeDiffers	11 ms	3.8 ms
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"
TypeKnown for one	Unknown — not stated by the source	HDD
Full stroke seek timeKnown for one	Unknown — not stated by the source	6.7 ms
Track to track seek timeKnown for one	Unknown — not stated by the source	0.4 ms
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
Minimum system requirementsKnown for one	Unknown — not stated by the source	1 x int - 3.5" x 1/3H
Mac compatibilityKnown for one	Unknown — not stated by the source	Yes
I/O portsKnown for one	Unknown — not stated by the source	1 x Ultra320 SCSI
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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