Look I'm going to be honest AMD is not going to get any kind of traction with the customers that matter. At work they're buying 4P Haswell-E 2U servers like candy for all the VMware they plan on running and all of them are the 20c Xeons. One would think that this would be great for AMD to swoop in and steal a multi-multi-million dollar sale. Nope. It isn't just about threads or who has the best single thread performance. It has to things that don't matter to you and I like PCI-E lane resources for SAN arrays, quad memory channels to split VM resources, the way QPI is structured to allow multi-core resource sharing which allows over-provisioning of VMs etc etc etc.
Ryzen may be disruptive in retail channels... maybe but in the enterprise space? No chance. If you think otherwise you're not living in reality.