I have a hard time understanding what you are trying to say. But yes, core 2 duos do run cooler and they require less power to run. And the reason for that is that it's a completely different core than the p4's. (that including pentium D's since they are pretty much 2 p4 cores glued together) The core doesn't rely on high clock speeds for performance, but instead they do more work per clock cycle so overall the performance is better. Overall the core is much better than the one used on p4's, intel pretty much copied what amd was doing. Better architecture and lower clock speeds. And that was the reason why amd had the upper hand in processors a while ago. And there are lots of benchmarks to prove the difference between a p4 and a core 2 duo. Also from personal experience I know how good the core 2 duos are. I've tested myself the difference between a p4 and a core 2 duo when using software like super pi. The difference is huge, not that it would really matter that much since all games run fine on my p4, but the core 2 duo is just so much better.