With yesterday's release of GCC 4.8.0, here are some new benchmarks. For this first roundabout are comparative benchmarks between GCC 4.7.2 and GCC 4.8.0 for an Intel Core i7 990X "Gulftown" system running Ubuntu Linux.
When building the compiler the same as well as the applications under test with the Phoronix Test Suite, the GCC 4.7.2 and 4.8.0 (a near final source snapshot from a few days prior) were compared on the still-fast Core i7 990X Extreme Edition system with Ubuntu 13.04.
The results in full for this quick Intel Core i7 compiler benchmarking can be found on OpenBenchmarking.org via the 1303230-FO-GCC48INTE76 result file. Within that result file are the 30+ test results along with the full hardware/software system details and logs.
There are some regressions with GCC 4.8.0 on this Intel x86_64 Linux system...
Himeno falls back too with the new release.
Compilation times may be slightly slower with 4.8.0.
C-Ray continues to run faster with GCC 4.8.
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter and Google+ or contacted via MichaelLarabel.com.