Overclocking Intel's Core i7 920 Processor

Article Index

Testbed and Synthetic Performance

Test System Details
Specifications and Revisions

  • Intel Core i7 920 Processor (2.66 GHz, 8 MB L3, 20 x 1333 MHz Clock)
  • 3 x DDR3-1333 MHz Memory Modules, Triple Channel, 6 GB Capacity, CAS 7-7-7
  • 1 x eVGA X58 X3 SLI Motherboard, Intel X58 Chipset
  • 1 x Nvidia QuadroFX 4800 1.5 GB Graphics Card
  • 1 x Western Digital VelociRaptor 150GB 10,000 RPM SATA-II Hard Disk
  • 1 x Plextor DVD+/-RW Serial ATA Optical Drive
  • 1 x Corsair HX620W 620W Modular Power Supply
  • Microsoft Windows Vista Ultimate x64 Edition

PCMark Vantage - Synthetic System Performance
Higher Scores Are Better

3DMark Vantage - Synthetic Gaming Performance
Higher Scores Are Better

While upping our Core i7 920 to 4.0 GHz represents a big boost in terms of overall clock rate, this doesn't immediately translate into huge performance increases. With this much CPU power at your disposal, other aspects of your system configuration quickly become bottlenecks. Our GPU-limited 3DMark Vantage test doesn't show huge gains, as our 1.5 GB equipped QuadroFX card became the bottleneck, which shows what kind of power we're dealing with on the CPU level. However, in the specific CPU benchmark, we see sizable performance increases with each overclocked level.

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