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Product comparison · 2 internal hard drives

Samsung 120GB Serial ATA I HDD vs Seagate Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pk

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  • 15specifications compared
  • 10differ
  • 5identical
  • 20known for one product only

Key differences

The Seagate Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pk has 130 GB more HDD capacity than the Samsung 120GB Serial ATA I HDD (250 GB vs 120 GB). The Seagate Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pk has 1,800 RPM more HDD speed than the Samsung 120GB Serial ATA I HDD (7200 RPM vs 5400 RPM). The Seagate Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pk has 1" more HDD size than the Samsung 120GB Serial ATA I HDD (3.5" vs 2.5"). Operating voltage: 5 V on the Samsung 120GB Serial ATA I HDD, 5 / 12 V on the Seagate Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pk.

  • HDD capacity
    • 120 GB
    • 250 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Storage drive buffer size
    • 8 MB
    • 16 MB
  • Track to track seek time
    • 2 ms
    • 0.8 ms
  • Average latency
    • 5.6 ms
    • 4.16 ms
  • Mean time between failures (MTBF)
    • 330000 h
    • 1200000 h
  • Operating voltage
    • 5 V
    • 5 / 12 V

Side by side

Differences highlightedShow differences only
35 specifications
A

Samsung

120GB Serial ATA I HDDView product
B

Seagate

Barracuda ES.2 SATA 3.0-Gb/s 250-GB HD 20pkView product
Features7 differ
HDD capacityDiffers120 GB250 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceSerial ATASerial ATA
Storage drive buffer sizeDiffers8 MB16 MB
Full stroke seek timeKnown for one22 ms
Track to track seek timeDiffers2 ms0.8 ms
Average seek timeKnown for one12 ms
Average latencyDiffers5.6 ms4.16 ms
Bytes per sector512512
Mean time between failures (MTBF)Differs330000 h1200000 h
Read seek timeKnown for one8.5 ms
Write seek timeKnown for one9.5 ms
Power1 differ
Power consumption (typical)Known for one2.1 W
Power consumption (standby)Known for one0.25 W
Power consumption (PowerSave)Known for one0.2 W
Operating voltageDiffers5 V5 / 12 V
Operational conditions2 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)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating shockDiffers325 G63 G
Non-operating shockDiffers1000 G300 G
Other featuresidentical
Power requirementsKnown for one+5V
Drive ready timeKnown for one4 s
InternalYesYes
Acoustic pressure emissionsKnown for one2.2 dB
HDD transfer rateKnown for one1287 Mbit/s
Data transfer rateKnown for one3 Gbit/s
USB poweredKnown for oneNo
Sustained data rateKnown for one105 MB/s
Weight & dimensionsidentical
WidthKnown for one101.6 mm
DepthKnown for one147 mm
HeightKnown for one20 mm
WeightKnown for one362 g

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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