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Product comparison · 2 cpus

Acer Intel Pentium G645 vs Acer Intel Xeon E3-1280

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  • 36specifications compared
  • 16differ
  • 20identical
  • 22known for one product only

Key differences

The Acer Intel Xeon E3-1280 has 0.6 GHz more processor base frequency than the Acer Intel Pentium G645 (3.5 GHz vs 2.9 GHz). The Acer Intel Xeon E3-1280 has 2 more processor cores than the Acer Intel Pentium G645 (4 vs 2). The Acer Intel Xeon E3-1280 has 6 more processor threads than the Acer Intel Pentium G645 (8 vs 2). Only the Acer Intel Pentium G645 has on-board graphics card. Processor family: Intel Pentium G on the Acer Intel Pentium G645, Intel® Xeon® E3 Family on the Acer Intel Xeon E3-1280.

  • Processor family
    • Intel Pentium G
    • Intel® Xeon® E3 Family
  • Processor model
    • G645
    • E3-1280
  • Processor base frequency
    • 2.9 GHz
    • 3.5 GHz
  • Processor cores
    • 2
    • 4
  • Component for
    • PC
    • Server/workstation
  • Processor threads
    • 2
    • 8
  • Processor cache
    • 3 MB
    • 8 MB
  • L3 cache speed
    • 2.9 GHz
    • 3.5 GHz

Side by side

Differences highlightedShow differences only
58 specifications
A

Acer

Intel Pentium G645View product
B

Acer

Intel Xeon E3-1280View product
Processor11 differ
Processor familyDiffersIntel Pentium GIntel® Xeon® E3 Family
Processor modelDiffersG645E3-1280
Processor base frequencyDiffers2.9 GHz3.5 GHz
Processor coresDiffers24
Component forDiffersPCServer/workstation
Processor threadsDiffers28
Processor cacheDiffers3 MB8 MB
L3 cache speedDiffers2.9 GHz3.5 GHz
Thermal Design Power (TDP)Differs65 W95 W
Compatible chipsetsKnown for oneIntel® B65 Express, Intel® H61 Express, Intel® H67 Express, Intel® H77 Express, Intel® P67 Express, Intel® Q65 Express, Intel® Q67 Express, Intel Q75 Express, Intel® Q77 Express, Intel® Z68 Express, Intel® Z75 Express, Intel® Z77 Express
SteppingDiffersQ0D2
Memory bandwidth supported by processor (max)Differs17 GB/s21 GB/s
Processor codeKnown for oneSR0RS
Processor boost frequencyKnown for one3.9 GHz
CPU multiplier (bus/core ratio)Known for one35
Memory1 differ
Memory clock speeds supported by processorDiffers1066 MHz1066,1333 MHz
ECCKnown for oneYes
Graphics1 differ
On-board graphics cardDiffersYesNo
On-board graphics card modelKnown for oneIntel® HD Graphics
On-board graphics card base frequencyKnown for one850 MHz
On-board graphics card dynamic frequency (max)Known for one1100 MHz
Number of displays supported (on-board graphics)Known for one2
Features1 differ
Market segmentDiffersDesktopServer
Supported instruction setsKnown for oneSSE4.1, SSE4.2
Graphics & IMC lithographyKnown for one32 nm
Maximum number of PCI Express lanesKnown for one2
Processor special featuresidentical
Enhanced Intel SpeedStep TechnologyKnown for oneYes
Intel FDI TechnologyKnown for oneYes
Intel® Smart CacheKnown for oneYes
Intel Trusted Execution TechnologyKnown for oneYes
Intel® AES New Instructions (Intel® AES-NI)Known for oneYes
Intel® Hyper Threading Technology (Intel® HT Technology)Known for oneYes
Intel® Turbo Boost TechnologyKnown for one2.0
Intel Demand Based SwitchingKnown for oneYes
Intel Virtualization Technology for Directed I/O (VT-d)Known for oneYes
Intel® vPro™ Platform EligibilityKnown for oneYes
Operational conditions1 differ
TcaseDiffers69.1 °C73.6 °C
Other features1 differ
Intel® Virtualization Technology (Intel® VT)DiffersVT-xVT-d, VT-x

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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