Our review of Core 2 Extreme QX6700, the first Intel quad-core CPU running at 2.66 GHz and compatible with socket 775 platform. Does quad-core CPUs really improve PC performance? Check it out.

Here is a snippet: "During last IDF we had the chance of making a short review on Intel's first quad-core CPU, Core 2 Extreme QX6700 (codenamed Kentsfield) - which runs at 2.66 GHz. This time we got one sample from Intel and were able to run several programs and compare its performance with other CPUs from Intel and from AMD. Does quad-core CPUs really improve PC performance? Check it out."



Link: Hardware Secrets