Boot Camp Windows 7 processor affinity?

Out of sheer curiosity, is it possible in Windows 7 to set CPU affinity on the octo Mac Pro? For instance, having one set to rendering/transcoding, while the other is set to another current active task (browsing, gaming, what have you)?

I know you can set core affinity, but I don't have a dual socket system handy at the moment to try CPU affinity, and was wondering if anyone with an octo Mac Pro has tried it.

 

I realize that, although in some apps I've run into the problem where personally setting core affinity gives better performance. That's why I was asking.