Product comparison · 2 cpus

HP AMD Phenom II P840 vs Lenovo Intel Xeon E5649

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  • 12specifications compared
  • 11differ
  • 1identical
  • 10known for one product only

Key differences

The Lenovo Intel Xeon E5649 has 0.63 GHz more processor base frequency than the HP AMD Phenom II P840 (2.53 GHz vs 1.9 GHz). The Lenovo Intel Xeon E5649 has 3 more processor cores than the HP AMD Phenom II P840 (6 vs 3). The HP AMD Phenom II P840 has 13 nm more processor lithography than the Lenovo Intel Xeon E5649 (45 nm vs 32 nm). Processor family: AMD Phenom II on the HP AMD Phenom II P840, Intel® Xeon® 5000 Sequence on the Lenovo Intel Xeon E5649. Processor model: P840 on the HP AMD Phenom II P840, E5649 on the Lenovo Intel Xeon E5649.

  • Processor family
    • AMD Phenom II P840:AMD Phenom II
    • Intel Xeon E5649:Intel® Xeon® 5000 Sequence
  • Processor model
    • AMD Phenom II P840:P840
    • Intel Xeon E5649:E5649
  • Processor base frequency
    • AMD Phenom II P840:1.9 GHz
    • Intel Xeon E5649:2.53 GHz
  • Processor cores
    • AMD Phenom II P840:3
    • Intel Xeon E5649:6
  • Processor socket
    • AMD Phenom II P840:Socket S1
    • Intel Xeon E5649:Socket B (LGA 1366)
  • Processor lithography
    • AMD Phenom II P840:45 nm
    • Intel Xeon E5649:32 nm
  • Processor operating modes
    • AMD Phenom II P840:32-bit, 64-bit
    • Intel Xeon E5649:64-bit
  • Processor cache
    • AMD Phenom II P840:1.5 MB
    • Intel Xeon E5649:12 MB

Side by side

Differences highlightedShow differences only (off)
Comparison of AMD Phenom II P840, Intel Xeon E5649
22 specifications
Processor10 differ
Processor familyDiffersAMD Phenom IIIntel® Xeon® 5000 Sequence
Processor modelDiffersP840E5649
Processor base frequencyDiffers1.9 GHz2.53 GHz
Processor coresDiffers36
Processor socketDiffersSocket S1Socket B (LGA 1366)
Processor lithographyDiffers45 nm32 nm
Component forServer/workstationServer/workstation
Processor threadsKnown for oneUnknown — not stated by the source12
System bus rateKnown for oneUnknown — not stated by the source5.86 GT/s
Processor operating modesDiffers32-bit, 64-bit64-bit
Processor cacheDiffers1.5 MB12 MB
Processor cache typeDiffersL2L3
Processor front side busKnown for oneUnknown — not stated by the source1333 MHz
Thermal Design Power (TDP)Differs25 W80 W
VID Voltage RangeKnown for oneUnknown — not stated by the source0.750 - 1.350 V
SteppingKnown for oneUnknown — not stated by the sourceB1
CPU multiplier (bus/core ratio)Known for oneUnknown — not stated by the source19
Processor codeKnown for oneUnknown — not stated by the sourceSLBZ8
Features1 differ
Market segmentDiffersMobileServer
BandwidthKnown for oneUnknown — not stated by the source26214.4 MB/s
Operational conditionsidentical
Maximum operating temperatureKnown for oneUnknown — not stated by the source76.2 °C
Processor special featuresidentical
AMD Virtualization TechnologyKnown for oneYesUnknown — not stated by the source

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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