Intel Core 2 Extreme X6800 Overclocking with Air Cooling

Overclocking/Overclocking Tests by windwithme @ 2006-06-19

With the release of Core 2 from Intel approaching we take a look at how much headroom the X6800 (Extreme Edition) has left, clocked at 2.93Ghz we push it to the limit using high end air cooling.

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Overclocking over 3Ghz with ease

Not all software recognizes the new CPU but there were some which did, the latest version of Everest correctly identified the Core 2 model, a prerelease version of GCPUID got the model correct also but the multiplier and FSB values are off, CPU-Z (at first) displayed incorrect vcore and CPU speed and qualified the CPU as Core Duo. After the first tests a new CPU-Z was released this corrected these errors.

Madshrimps (c)


Using SuperPi, PCMark05, Everest and CPUMark99 I got the system base performance before I started overclocking.



The Everest CPU tests display the system’s score compared to other popular configurations:

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First overclock – E8000 speeds

Without adding vcore the system ran stable at 300Mhz FSB which results in 3300Mhz CPU speed, and this is the rating of the Core 2 Extreme E8000 model which Intel is planning to release at the end of this year.

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Next up: trying to find out the maximum FSB this CPU and motherboard combination could obtain, the CPU multiplier was reduced to 8x and got up to 390Mhz FSB, impressive!

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