Originally Posted by Themisseble
AMD is pretty quiet about ZEN core info... they are only saying 40%+ IPC over excavator.
We know quite a bit from the public patches, though. We know the general capabilities of its ten pipelines, for example.
We have some of their papers and patents that suggest seriously low cache latencies as well (as good as Haswell, even).
We know that they are targeting "closer to 4Ghz" and 95W as well. We just don't know for which SKUs...
In fact, I think we have more information now about Zen's internals than we had for Bulldozer as this point. It wasn't until they released the optimization guide that anyone started to put the math together and realize that Bulldozer, by design, would have trouble with single threaded applications.
The great thing here, is that we have this much information... and those of us who do that math actually have a hard time figuring out how Zen will only be 40% faster than Excavator... the only explanations being that AMD went the fastest, crudest, path possible in the rest of the core in order to get a quality product to market... which would explain why they already know the next iteration will be 15% faster (itself quite a nice jump in performance).