I believe AMD's market share in consumer PC's is about to double or more with Zen, if their demo is to be believed. Their supposed < $500 CPU is on par in performance with Intel's $1100 CPU with a TDP of 95W instead of Intel's 140W.

Agreed. And with both lower power usage and ubiquitous support for ECC memory, I think we will be seeing a lot of them in server rooms.

If Zen ends up mopping the floor with the E3 and E5 Xeons I will be one of the first to replace gear in my homelab. The amount of money Intel wants for a second E5-2403v2 (a really weak cheap in comparison to my similarly priced i5-4570 in my desktop) to go in my ThinkServer TD430 is insane. Not to mention they're still gimping the memory capacity and PCI-E support of the low-end E3 chips, even though they can cost almost as much as a low-end E5/E7 with similar clock speeds (this part is extremely annoying for my FreeNAS box which is an HP ML10, I could really use support for more than 32GB of RAM).

High end I don't know, but for low end gaming (where my builds always fall into) I'd never dare to buy anything but intel/nvidia, bangs-for-bucks there simply is no comparison especially if you live in a place where kWh are expensive.

The new architecture may change things, but for now, that's it. They might have started losing market due to shady tactics from the competitors, but the nail in the coffin was the botched bulldozer. that had consequences felt on every series down the road, including unrealistic power consumption per unit.

I built a new gaming PC in June and I considered AMD. AMD's current CPU lineup is very confusing and there seems to be a lot of overlap.

I ended up going with Intel, but if I had decided to go with AMD, I would have spent a while figuring out which CPU to go with.

I hope AMD simplifies its product line when Zen comes out and gets rid of the confusing nomenclature and the low-end crap that clutters everything up.

To be fair I find the Intel product lines equaly confusing, especially when dealing with several generations of i3/i5/i7. There's a shit-ton of them.