AMD announced at the Hot Chips conference that its future Bulldozer processor architecture will support simultaneous multi-threading technology (SMT).
AMD did not reveal many details about its SMT capability and only said that its Bulldozer processors would support it in 2011. Still, it is rather likely that AMD’s approach may be somewhat different compared to Intel’s HT and may even be of the same kind like Sun Microsystems’ simultaneous multi-threading feature than supports execution of four threads on one physical core.
It is interesting to note that earlier AMD did not consider SMT to be a viable feature. However, it did admit that simultaneous multi-threading is a necessary feature of the future generations of microprocessors that significantly boosts performance.