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Product comparison · 2 cpus

HP Z620 Xeon E5-2643 4C 3.30GHz 10MB vs HP Z820 Xeon E5-2620 6C 2.00GHz 15MB

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  • 48specifications compared
  • 14differ
  • 34identical
  • 0known for one product only

Key differences

The HP Z620 Xeon E5-2643 4C 3.30GHz 10MB has 1.3 GHz more processor base frequency than the HP Z820 Xeon E5-2620 6C 2.00GHz 15MB (3.3 GHz vs 2 GHz). The HP Z820 Xeon E5-2620 6C 2.00GHz 15MB has 2 more processor cores than the HP Z620 Xeon E5-2643 4C 3.30GHz 10MB (6 vs 4). The HP Z820 Xeon E5-2620 6C 2.00GHz 15MB has 4 more processor threads than the HP Z620 Xeon E5-2643 4C 3.30GHz 10MB (12 vs 8). Processor model: E5-2643 on the HP Z620 Xeon E5-2643 4C 3.30GHz 10MB, E5-2620 on the HP Z820 Xeon E5-2620 6C 2.00GHz 15MB. Memory clock speeds supported by processor: 800,1066,1333,1600 MHz on the HP Z620 Xeon E5-2643 4C 3.30GHz 10MB, 800,1066,1333 MHz on the HP Z820 Xeon E5-2620 6C 2.00GHz 15MB.

  • Processor model
    • E5-2643
    • E5-2620
  • Processor base frequency
    • 3.3 GHz
    • 2 GHz
  • Processor cores
    • 4
    • 6
  • Processor threads
    • 8
    • 12
  • System bus rate
    • 8 GT/s
    • 7.2 GT/s
  • Processor boost frequency
    • 3.5 GHz
    • 2.5 GHz
  • Processor cache
    • 10 MB
    • 15 MB
  • Processor front side bus
    • 1600 MHz
    • 1333 MHz

Side by side

Differences highlightedShow differences only
48 specifications
A

HP

Z620 Xeon E5-2643 4C 3.30GHz 10MBView product
B

HP

Z820 Xeon E5-2620 6C 2.00GHz 15MBView product
Processor11 differ
Processor modelDiffersE5-2643E5-2620
Processor base frequencyDiffers3.3 GHz2 GHz
Processor coresDiffers46
Processor threadsDiffers812
System bus rateDiffers8 GT/s7.2 GT/s
Processor boost frequencyDiffers3.5 GHz2.5 GHz
Processor cacheDiffers10 MB15 MB
Processor front side busDiffers1600 MHz1333 MHz
Thermal Design Power (TDP)Differs130 W95 W
CPU multiplier (bus/core ratio)Differs3525
Memory bandwidth supported by processor (max)Differs51.2 GB/s42.6 GB/s
Memory1 differ
Memory clock speeds supported by processorDiffers800,1066,1333,1600 MHz800,1066,1333 MHz
Operational conditions1 differ
TcaseDiffers73 °C77.4 °C
Other features1 differ
CompatibilityDiffersHP Z620HP Z820

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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