Phoronix: Clang'ed FreeBSD: Builds Quicker, Uses Way Less RAM

A FreeBSD developer has carried out a series of performance tests to explore the impact that LLVM/Clang as the default FreeBSD compiler has on FreeBSD 10 in its current form. The Clang compiler performance was compared to GCC 4.2.1 and GCC 4.7.1. Clang mostly comes out ahead of GCC on FreeBSD...

http://www.phoronix.com/vr.php?view=MTE3NjI