AMD's Bobcat and Bulldozer

[-Boris-]

No one is sure, all JF has said is that AMD is working with MS to devise core utilization order etc.

I would imagine, that ideally for multithreaded tasks you would want the same module due to the shared L2, but for separate tasks you would want different modules due to the performance loss from sharing components

At the same time as you have a performance loss to shared components you have a boost from Turbo. If four threads run on a module each, you will have no turbo, since turbo managment is at a module level and not at a core level. If all threads run at two modules, you will have a 10% performance hit, but you will have turbo making up for that and more.