AMD doesn't have any such technology. It would like to have it but even the upcoming K8L quad core won't be able to present a dual or quad core as a single core to the Operating system.
On the other hand AMD doesn’t not need such a architecture as the operating systems are getting used to a dual and later quad machines. It's just a dream that someone set afloat but AMD doesn't have such a architecture.
AMD Reverse Hyperthreading was a hoax
Posted on Monday, Jul 10 2006 @ 20:58 CEST by Thomas De Maesschalck