The only expectation I have with Zen is that it will perform better than Bulldozer. I purchased AMD processors for many years, but Bulldozer always looked like a dud even before it came out. The reason was that even though AMD could beat Intel's Integer performance, their FPUs have sucked since the Pentium days and with Bulldozer was sharing an FPU between 2 cores, that just went from bad to worse. Also, extensions like 3DNow never performed on par with Intel's counterpart. But, if AMD can offer Ivy Bridge performance, at least 3.5 GHz and an 8 core processor for around $300, I'd certainly pick one up. I'd be tempted to go 4 core if they can get it to 4 GHz and around $250.