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Product comparison · 2 internal hard drives

Samsung 300GB HDD vs Seagate 120GB 3.5" Ultra ATA/100

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  • 23specifications compared
  • 10differ
  • 13identical
  • 21known for one product only

Key differences

The Samsung 300GB HDD has 180 GB more HDD capacity than the Seagate 120GB 3.5" Ultra ATA/100 (300 GB vs 120 GB). The Samsung 300GB HDD has 6 MB more storage drive buffer size than the Seagate 120GB 3.5" Ultra ATA/100 (8 MB vs 2 MB). The Samsung 300GB HDD has 0.01 ms more average latency than the Seagate 120GB 3.5" Ultra ATA/100 (4.17 ms vs 4.16 ms). Operating altitude: -304.8 - 3048 m on the Samsung 300GB HDD, -60.96 - 3048 m on the Seagate 120GB 3.5" Ultra ATA/100. Non-operating altitude: -304.8 - 12192 m on the Samsung 300GB HDD, -60.96 - 12192 m on the Seagate 120GB 3.5" Ultra ATA/100.

  • HDD capacity
    • 300 GB
    • 120 GB
  • Storage drive buffer size
    • 8 MB
    • 2 MB
  • Average latency
    • 4.17 ms
    • 4.16 ms
  • Power consumption (idle)
    • 8 W
    • 2.5 W
  • Operating altitude
    • -304.8 - 3048 m
    • -60.96 - 3048 m
  • Non-operating altitude
    • -304.8 - 12192 m
    • -60.96 - 12192 m
  • Non-operating shock
    • 300 G
    • 350 G
  • Depth
    • 146.1 mm
    • 146.9 mm

Side by side

Differences highlightedShow differences only
44 specifications
A

Samsung

300GB HDDView product
B

Seagate

120GB 3.5" Ultra ATA/100View product
Features3 differ
HDD capacityDiffers300 GB120 GB
HDD speed7200 RPM7200 RPM
HDD size3.5"3.5"
InterfaceUltra-ATA/100Ultra-ATA/100
TypeHDDHDD
Storage drive buffer sizeDiffers8 MB2 MB
HDD number of cylindersKnown for one16383
HDD number of headsKnown for one16
Read seek timeKnown for one11 ms
Write seek timeKnown for one12 ms
Average latencyDiffers4.17 ms4.16 ms
Bytes per sector512512
Start/stop cycles5000050000
Full stroke seek timeKnown for one18 ms
Track to track seek timeKnown for one0.8 ms
Average seek timeKnown for one8.9 ms
Mean time between failures (MTBF)Known for one600000 h
Power1 differ
Power consumption (idle)Differs8 W2.5 W
Operating voltage5 / 12 V5 / 12 V
Power consumption (typical)Known for one8.4 W
Power consumption (standby)Known for one0.7 W
Power consumption (PowerSave)Known for one0.45 W
Operational conditions3 differ
Operating temperature (T-T)0 - 60 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)5 - 90%5 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating altitudeDiffers-304.8 - 3048 m-60.96 - 3048 m
Non-operating altitudeDiffers-304.8 - 12192 m-60.96 - 12192 m
Operating shock63 G63 G
Non-operating shockDiffers300 G350 G
Operating vibrationKnown for one1 G
Non-operating vibrationKnown for one2 G
Weight & dimensions3 differ
Width101.6 mm101.6 mm
DepthDiffers146.1 mm146.9 mm
HeightDiffers25.4 mm26 mm
WeightDiffers653 g580 g
Other featuresidentical
HDD transfer rateKnown for one100 Mbit/s
Power requirementsKnown for one2.6
Dimensions (WxDxH)Known for one101.6 x 146.9 x 26.04 mm
InternalKnown for oneYes
Drive devices burst data transfer rate (DMA)Known for one2
Drive devices burst data transfer rate (PIO)Known for one4
Drive devices burst data transfer rate (Ultra DMA)Known for one5
Drive ready timeKnown for one10 s

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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