First of all we decided to check out the performance of our testing participants in simple synthetic benchmarks that do not use multi-threaded processing. The winner in both these tests is the CPU on Core microarchitecture working at its nominal speed as well as the overclocked one. And the advantage of this CPU is more than significant.
The results of the newer Futuremark 3DMark06 test are not so unified any more. Yes, Core 2 Duo E6300 performs quite well here, especially when we overclocked it and all the other participants were lost far behind. However, in the CPU subtest we see that Pentium D 945 outperforms the newcomer working at its nominal speed. I have to point out here that this dual-core processor family based on NetBurst architecture has also gained quite a bit of performance after the Core 2 Duo launch. However, they owe this improvement not to the architectural changes but to the price reduction that shifted them to a new segment. For example, Pentium D 3.4GHz used to sell for $316, and starting today it competes within the sub-$200 price range.
ScienceMark 2.0 is one of the few benchmarks that can be a consolation to AMD today. This tests uses the FPU unit and system memory a lot, and these particular operations have always been a trump of Athlon 64 processors. They process these commands even faster than the newly launched Intel Core based processors. However, the overclocked Core 2 Duo E6300 takes the performance advantage away from Athlon 64 here.