Processor bus frequency and L2 cache memory matter a lot for the CPU performance in games. Therefore, any limitation on the original core functionality immediately slows down the gaming performance. As we can see, Core 2 Duo E7300 is far behind Core 2 Duo E8200, and Pentium DC E5200 is noticeably slower than Core 2 Duo E7200 even though these processor pairs work at similar clock speeds and use cores from the same Wolfdale family. As a result, Athlon 64 X2 6000+ competes successfully against Pentium DC E5200. However, Phenom X3 8750 proves fast only in Unreal Tournament 3 that knows to take advantage of triple-core CPU architecture.
As for our today’s newcomers (Core 2 Duo E7300 and Pentium Dual-Core E5200) compared against their predecessors (Core 2 Duo E4700 and Pentium DC 2220), they prove beyond our expectations. And it was particularly pleasing that despite the significant performance improvement demonstrated by the new 45nm CPUs, they are sold at the same price as their 65nm predecessors.