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Product comparison · 2 internal hard drives

Samsung 120GB Serial ATA Hard Drive vs Seagate 100GB HDD

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  • 24specifications compared
  • 18differ
  • 6identical
  • 17known for one product only

Key differences

The Seagate 100GB HDD has 20 GB more HDD capacity than the Samsung 120GB Serial ATA Hard Drive (100 GB vs 80 GB). The Samsung 120GB Serial ATA Hard Drive has 3,000 RPM more HDD speed than the Seagate 100GB HDD (7200 RPM vs 4200 RPM). The Samsung 120GB Serial ATA Hard Drive has 1" more HDD size than the Seagate 100GB HDD (3.5" vs 2.5"). Interface: Serial ATA on the Samsung 120GB Serial ATA Hard Drive, Ultra-ATA/100 on the Seagate 100GB HDD. Operating voltage: 5 / 12 V on the Samsung 120GB Serial ATA Hard Drive, 5 V on the Seagate 100GB HDD.

  • HDD capacity
    • 80 GB
    • 100 GB
  • HDD speed
    • 7200 RPM
    • 4200 RPM
  • HDD size
    • 3.5"
    • 2.5"
  • Interface
    • Serial ATA
    • Ultra-ATA/100
  • Average seek time
    • 8.9 ms
    • 12.5 ms
  • Average latency
    • 4.17 ms
    • 5.6 ms
  • Start/stop cycles
    • 50000
    • 20000
  • Mean time between failures (MTBF)
    • 500000 h
    • 600000 h

Side by side

Differences highlightedShow differences only
41 specifications
A

Samsung

120GB Serial ATA Hard DriveView product
B

Seagate

100GB HDDView product
Features8 differ
HDD capacityDiffers80 GB100 GB
HDD speedDiffers7200 RPM4200 RPM
HDD sizeDiffers3.5"2.5"
InterfaceDiffersSerial ATAUltra-ATA/100
TypeKnown for oneHDD
Component forKnown for oneLaptop
Storage drive buffer size8 MB8 MB
HDD number of headsKnown for one4
Average seek timeDiffers8.9 ms12.5 ms
Average latencyDiffers4.17 ms5.6 ms
Bytes per sector512512
Start/stop cyclesDiffers5000020000
Mean time between failures (MTBF)Differs500000 h600000 h
Full stroke seek timeKnown for one18 ms
Track to track seek timeKnown for one0.8 ms
Power2 differ
Power consumption (typical)Known for one2.3 W
Power consumption (standby)Differs0.9 W0.2 W
Power consumption (idle)Known for one0.99 W
Power consumption (read)Known for one2.05 W
Power consumption (write)Known for one2.1 W
Operating voltageDiffers5 / 12 V5 V
Start-up currentKnown for one1 A
Operational conditions4 differ
Operating temperature (T-T)5 - 55 °C5 - 55 °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 vibrationKnown for one1 G
Non-operating vibrationKnown for one5 G
Operating altitudeDiffers-305 - 3050 m-304.8 - 3048 m
Non-operating altitudeDiffers-305 - 12200 m-304.8 - 12192 m
Operating shockDiffers63 G250 G
Non-operating shockDiffers350 G900 G
Weight & dimensions4 differ
WidthDiffers101.6 mm69.8 mm
DepthDiffers146.1 mm100.2 mm
HeightDiffers25.4 mm9.5 mm
WeightDiffers635 g98 g
Other featuresidentical
Power requirementsKnown for one5V°±5% / 12V°±10%
Drive device, transfer rateKnown for one150 MB/s
Drive ready timeKnown for one7 s
InternalKnown for oneYes
Acoustic pressure emissionsKnown for one27 dB

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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