LLVM/Clang 3.3 Delivers Speed Improvements
For all of the tested John The Ripper test-cases, LLVM/Clang 3.3 SVN was noticeably faster than LLVM/Clang 3.3 for this low-power Intel x86_64 processor.
For the vpxenc and x264 video encoding workloads, the performance is largely unchanged, but often these multimedia applications are relying upon hand-tuned Assembly.