You need to give Microsoft and AMD an “A for effort”; they’ve once again tried to improve Bulldozer performance on the Windows 7 platform, and if they keep it up they may eventually succeed.
Bulldozer can’t realise its full power potential in a Windows 7 environment – thanks to the core scheduler used by the popular operating system, it can’t take full advantage of the multi-core Bulldozer architecture.
Microsoft attempted to address this with a patch released late in 2011, though all this managed to do was create performance issues until Microsoft pulled the patch.
Not one to walk away from failure, Microsoft returned with a bigger, better patch for Bulldozer which promised more performance – again.
Unfortunately the performance increase users reported was in many cases less than 1 percent, if anything at all.
AMD acknowledged in a blog post that the likely performance increase would be around 1 to 2 percent at most in situations that use half of the processor’s available cores.
As for heavily threaded applications that use more than four cores of an FX-8150, there will be little to no difference after the patch.
If 1 percent is worth the effort to you, grab the hotfixes here and here.
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My issue is that bulldozer was optimized for windows 8… and last time i checked, 8 wasn’t out commercially yet? :/