How We Tested

The test bench consisted in two identical systems featuring the components listed below. The only variable component was the CPU being evaluated (Core 2 Extreme X6800 or Core 2 Extreme QX6700).

Core 2 Extreme QX6700 Figure 6: Our test bench.

Hardware Configuration

  • Motherboard: Intel D975XBX2 Rev. 303 (BX97520J.86A.1446.2006.0913.1039 BIOS).

  • Memory: Two Corsair PC8500 CM2X1024-8500 modules with 1 GB each, installed under DDR2 dual channel configuration (5-5-5-15 timings).

  • Hard Drive: Seagate Barracuda 7200.10 (320 GB, 7,200 rpm, SATA-300)

  • Video Card: eVGA GeForce 7950 GX2.

Software Configuration

  • Windows XP Professional installed using NTFS

  • Service Pack 2

  • DirectX 9.0c

Driver Versions

  • NVIDIA video driver version : 91.47

  • Intel Inf driver version:

  • All motherboard drivers

Used Software

We adopted a 3% error margin; thus, differences below 3% cannot be considered relevant. In other words, products with a performance difference below 3% should be considered as having similar performance.


Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.