All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 internal hard drives

Seagate 20GB Serial ATA vs Seagate Green SATA 1.5TB

Add a product
  • 20specifications compared
  • 19differ
  • 1identical
  • 33known for one product only

Key differences

  • HDD capacity
    • 20 GB
    • 1.5 TB
  • HDD speed
    • 5400 RPM
    • 5900 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Serial ATA II
    • Serial ATA III
  • Storage drive buffer size
    • 2 MB
    • 64 MB
  • HDD number of heads
    • 1
    • 6
  • Read seek time
    • 16 ms
    • 12 ms
  • Write seek time
    • 16 ms
    • 13 ms

Side by side

Differences highlightedShow differences only
53 specifications
A

Seagate

20GB Serial ATAView product
B

Seagate

Green SATA 1.5TBView product
Features10 differ
HDD capacityDiffers20 GB1.5 TB
HDD speedDiffers5400 RPM5900 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersSerial ATA IISerial ATA III
TypeKnown for oneHDD
Storage drive buffer sizeDiffers2 MB64 MB
HDD number of cylindersKnown for one16383
HDD number of headsDiffers16
Read seek timeDiffers16 ms12 ms
Write seek timeDiffers16 ms13 ms
Full stroke seek timeKnown for one22 ms
Track to track seek timeKnown for one16 ms
Average latencyDiffers5.6 ms4.16 ms
SMART technologyKnown for oneYes
Bytes per sectorDiffers5124096
Start/stop cyclesKnown for one50000
Power2 differ
Power consumption (standby)Known for one1.15 W
Power consumption (PowerSave)Known for one1.15 W
Power consumption (idle)Differs2.5 W4.5 W
Operating voltageDiffers5 V5 / 12 V
Start-up currentKnown for one1 A
Power consumption (typical)Known for one5.8 W
Operational conditions3 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)Known for one8 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating vibrationKnown for one0.5 G
Non-operating vibrationKnown for one5 G
Operating altitudeKnown for one-304.8 - 3048 m
Non-operating altitudeKnown for one-304.8 - 12192 m
Operating shockDiffers100 G80 G
Non-operating shockDiffers500 G300 G
Weight & dimensions4 differ
WidthDiffers69.8 mm101.6 mm
DepthDiffers100.5 mm147 mm
HeightDiffers9.5 mm26.1 mm
WeightDiffers100 g635 g
Packaging dataidentical
Quantity per packKnown for one1 pc(s)
Other featuresidentical
Wi-FiKnown for oneNo
Ethernet LANKnown for oneNo
Product colourKnown for oneBlack
Fibre ChannelKnown for oneNo
FireWire 400Known for oneNo
FireWire 800Known for oneNo
InternalKnown for oneNo
Maximum data transfer rateKnown for one57.6 Mbit/s
USB 2.0 ports quantityKnown for one0
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one0
USB poweredKnown for oneNo
eSATAKnown for oneYes
Windows operating systems supportedKnown for oneYes
Acoustic pressure emissionsKnown for one2.4100 dB
Data transfer rateKnown for one6 Gbit/s
Sustained data rateKnown for one144 MB/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.

More internal hard drive comparisons

All internal hard drive comparisons