Product comparison · 2 internal hard drives

Lenovo 500GB 3.5" SATA II vs Seagate EE25 Series Ultra ATA/100 20-GB 25pk

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  • 10specifications compared
  • 9differ
  • 1identical
  • 10known for one product only

Key differences

The Lenovo 500GB 3.5" SATA II has 480 GB more HDD capacity than the Seagate EE25 Series Ultra ATA/100 20-GB 25pk (500 GB vs 20 GB). The Lenovo 500GB 3.5" SATA II has 1,800 RPM more HDD speed than the Seagate EE25 Series Ultra ATA/100 20-GB 25pk (7200 RPM vs 5400 RPM). The Seagate EE25 Series Ultra ATA/100 20-GB 25pk has 4 ms more read seek time than the Lenovo 500GB 3.5" SATA II (12.5 ms vs 8.5 ms). Interface: Serial ATA II on the Lenovo 500GB 3.5" SATA II, Ultra-ATA/100 on the Seagate EE25 Series Ultra ATA/100 20-GB 25pk.

  • HDD capacity
    • 500GB 3.5" SATA II:500 GB
    • EE25 Series Ultra ATA/100 20-GB 25pk:20 GB
  • HDD speed
    • 500GB 3.5" SATA II:7200 RPM
    • EE25 Series Ultra ATA/100 20-GB 25pk:5400 RPM
  • Interface
    • 500GB 3.5" SATA II:Serial ATA II
    • EE25 Series Ultra ATA/100 20-GB 25pk:Ultra-ATA/100
  • Read seek time
    • 500GB 3.5" SATA II:8.5 ms
    • EE25 Series Ultra ATA/100 20-GB 25pk:12.5 ms
  • Average latency
    • 500GB 3.5" SATA II:4.2 ms
    • EE25 Series Ultra ATA/100 20-GB 25pk:5.6 ms
  • Width
    • 500GB 3.5" SATA II:102 mm
    • EE25 Series Ultra ATA/100 20-GB 25pk:69.8 mm
  • Depth
    • 500GB 3.5" SATA II:26 mm
    • EE25 Series Ultra ATA/100 20-GB 25pk:100.2 mm
  • Height
    • 500GB 3.5" SATA II:147 mm
    • EE25 Series Ultra ATA/100 20-GB 25pk:9.5 mm

Side by side

Differences highlightedShow differences only (off)
Comparison of 500GB 3.5" SATA II, EE25 Series Ultra ATA/100 20-GB 25pk
20 specifications
Features5 differ
HDD capacityDiffers500 GB20 GB
HDD speedDiffers7200 RPM5400 RPM
HDD sizeKnown for one3.5"Unknown — not stated by the source
InterfaceDiffersSerial ATA IIUltra-ATA/100
TypeKnown for oneHDDUnknown — not stated by the source
Storage drive buffer size8 MB8 MB
Read seek timeDiffers8.5 ms12.5 ms
Average latencyDiffers4.2 ms5.6 ms
Write seek timeKnown for oneUnknown — not stated by the source14.5 ms
Poweridentical
Operating voltageKnown for one5 / 12 VUnknown — not stated by the source
Power consumption (standby)Known for oneUnknown — not stated by the source0.26 W
Weight & dimensions4 differ
WidthDiffers102 mm69.8 mm
DepthDiffers26 mm100.2 mm
HeightDiffers147 mm9.5 mm
WeightDiffers700 g100 g
Logistics dataidentical
Harmonized System (HS) codeKnown for one84717050Unknown — not stated by the source
Other featuresidentical
Windows operating systems supportedKnown for oneYesUnknown — not stated by the source
CertificationKnown for oneBSMI, C-Tick, CE MARK, CSA, IEC, TUV, ULUnknown — not stated by the source
InternalKnown for oneUnknown — not stated by the sourceYes
Operational conditionsidentical
Operating relative humidity (H-H)Known for oneUnknown — not stated by the source5 - 95%

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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