"Sun Studio software delivers high-performance, optimizing C, C++, and Fortran compilers for the Solaris OS on SPARC, and both Solaris and Linux on x86/x64 platforms, including the latest multi-core systems"
Lots of new features including :
- Supports Linux
- Better x86-64 support
- New Sun Studio IDE
- Better multicore support
- Faster compiler and better code generation
Sun Studio 12What's new