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Product comparison · 2 internal hard drives

Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) vs Samsung 500GB HDD

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  • 12specifications compared
  • 12differ
  • 0identical
  • 22known for one product only

Key differences

The Samsung 500GB HDD has 380 GB more HDD capacity than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (500 GB vs 120 GB). The Samsung 500GB HDD has 3,000 RPM more HDD speed than the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option) (7200 RPM vs 4200 RPM). The Samsung 500GB HDD 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 Samsung 500GB HDD. Operating temperature (T-T): 5 - 55 °C on the Acer 120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option), 0 - 60 °C on the Samsung 500GB HDD.

  • HDD capacity
    • 120 GB
    • 500 GB
  • HDD speed
    • 4200 RPM
    • 7200 RPM
  • Interface
    • Ultra-ATA/133
    • Serial ATA II
  • Storage drive buffer size
    • 8 MB
    • 16 MB
  • Average seek time
    • 11 ms
    • 8.9 ms
  • Average latency
    • 7.1 ms
    • 4.17 ms
  • Operating temperature (T-T)
    • 5 - 55 °C
    • 0 - 60 °C
  • Storage temperature (T-T)
    • -40 - 65 °C
    • -40 - 70 °C

Side by side

Differences highlightedShow differences only
34 specifications
A

Acer

120GB 2.5" 4200rpm HGST HTS421212H9AT00 (ROHS) (option)View product
B

Samsung

500GB HDDView product
Features6 differ
HDD capacityDiffers120 GB500 GB
HDD speedDiffers4200 RPM7200 RPM
HDD sizeKnown for one3.5"
InterfaceDiffersUltra-ATA/133Serial ATA II
TypeKnown for oneHDD
Storage drive buffer sizeDiffers8 MB16 MB
Full stroke seek timeKnown for one18 ms
Track to track seek timeKnown for one0.8 ms
Average seek timeDiffers11 ms8.9 ms
Average latencyDiffers7.1 ms4.17 ms
SMART technologyKnown for oneYes
Bytes per sectorKnown for one512
Start/stop cyclesKnown for one50000
Mean time between failures (MTBF)Known for one600000 h
Poweridentical
Power consumption (typical)Known for one8 W
Power consumption (standby)Known for one1.2 W
Operating voltageKnown for one5 / 12 V
Operational conditions2 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Storage temperature (T-T)Differs-40 - 65 °C-40 - 70 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one0 - 3000 m
Non-operating altitudeKnown for one0 - 12000 m
Operating shockKnown for one63 G
Non-operating shockKnown for one300 G
Weight & dimensions4 differ
WidthDiffers70 mm101.6 mm
DepthDiffers100 mm146.1 mm
HeightDiffers9.5 mm25.4 mm
WeightDiffers99 g640 g
Other featuresidentical
Drive ready timeKnown for one10 s
Acoustic pressure emissionsKnown for one2.4 dB
Dimensions (WxDxH)Known for one70 x 100 x 9.5 mm
Drive device, transfer rateKnown for one380 MB/s
InternalKnown for oneYes

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