Putting 'Extreme' back into the Extreme
In our Intel Core 2 (Conroe) Performance Review article, we briefly mentioned about the initial rumors of the Core 2 Extreme clocks. There was talk about it debuting at 3.33GHz on a 1333MHz PSB, but of course that didn't happen. While we're in no position to pout about the Core 2 Extreme X6800, especially after seeing its performance, we couldn't get rid of that nagging feeling that the X6800 just wasn't extreme enough since it was just a multiplier increment over the regular Core 2 Duo E6700.
We wanted to satisfy our curiosity as to how the Core 2 Extreme would perform if it did meet the speculated specifications on release. Our overclocking platform of choice - Gigabyte's GA-965P-DQ6. At the present moment, we find that many initial Core 2 motherboards' BIOS do not properly detect Core 2 processor capabilities, sometimes restricting multiplier selection and others lack the necessary voltage and tweaking selections. The GA-965P-DQ6 happens to be one of the better boards to support the unlocked X6800 and possess great voltage granularity, a perfect combination for our overclocking efforts.
Source:Intel Core 2 Extreme: 1333MHz PSB and Beyond