AMD and SSE3 Posted on 08/10/2004 at 15:38 by Marc
What is AMD’s position regarding the SSE3? To answer that question a little bit of background is required. In February 2004 during a conference AMD announced that a new revision of the Athlon 64’s core would bring amongst other innovations, the compatibility with the SSE3 and an improved prefetching. At the time we thought that this new core would come with the 90 nm fabrication process.
However, the release of the first Athlon 64 90nm “Winchester” changed our thoughts. These processors aren’t compatible with SSE3 and don’t seem to have an improved prefetching. On the other hand, AMD gave some details about their dual-core processors and indicated that they would be compatible with 10 of the 13 SSE3 instructions (two instructions for the HyperThreading and another one aren’t included) and would have an improved prefetching.
So will these improvements be made on dual core processors only? It is not possible to answer that question right now. But we think that the new core with SSE3 and improved prefetching isn’t ready yet and will be included later in AMD’s mono core 90 nm processors.