Phoronix: Benchmarking GCC 4.2 Through GCC 4.8 On AMD & Intel Hardware

Here are benchmarks of all major GNU Compiler Collection releases from GCC 4.2.4 through the latest GCC 4.8 development build. Benchmarking was of the seven GCC compiler releases from an Intel Core i7 "Clarksfield" system and an AMD Opteron "Shanghai" workstation.

http://www.phoronix.com/vr.php?view=17642