GCC 4.5 vs. 4.6 On AMD's FX-4100 Bulldozer

In continuing from yesterday's AMD FX-4100 "Bulldozer" Linux benchmarks, here are more Ubuntu test results from this system comparing the stock GCC 4.5.2 and GCC 4.6.1 compilers for the new Bulldozer platform.

This latest round of tests is looking at the system performance when a selection of the C/C++ benchmarks are compiled by GCC 4.5.2 and then the newer GCC 4.6.1 release by the Phoronix Test Suite, to see if there are yet any improvements in this latest stable release of the de facto Linux compiler that benefit Bulldozer. Now that an AMD Bulldozer kit -- an FX-8150 with an ASUS Crosshair V Formula motherboard -- has arrived at Phoronix (compared to running these FX-4100 tests remotely from a Phoronix reader's system), more tests are on the way, including a look at AMD's yet-to-be-merged Bulldozer kernel patch for Linux.

Testing was done in the same system hardware / OS configuration as yesterday's testing. Tests were also done with the stock compiler flags (tuned compiler tests are still forthcoming). Any questions can be directed to the forums.