I would do it, but only if AMD offered not just a top performing CPU but also fun one for overclocking. When it's my time for an upgrade, if AMD and Intel are similar in performance, I would get AMD just to stick it to Intel for being so lazy with their CPU's.
I currently have an i5-4690K and GTX 960 (I regret not getting an RX 480) on an Asus Z97-P. I paid 245 EUR for the i5-4690K, 230 EUR for the GTX 960, and 105 EUR for the Z97-P. That's 580 EUR for a decent PC, nothing monstrous.
If AMD can provide at least equal performance and efficiency at a similar price I'm likely switching. It won't be much of an upgrade, but I'll happily switch if it can hold its candle to Intel.
If AMD can provide clearly better performance and at least equal efficiency at a similar price I'm definitely switching.
I'd definitely consider switching if AMD can provide equal or better performance to the current 8/16 intel processor. Especially if they can get it out by March/April, and at about half the price of an Intel 8/16 chip. I really have an upgrade itch in me since I have had my current rig now for 5 years. It really will depend on how well it performs when HardOCP tests the chip. After the VR debacle I am not inclined to believe AMD's words till it gets verified by other third parties.
My CPU is feeling ancient and I am going to make a new build very soon. It's going to be the chip with the best price\performance in my budget. I'm waiting for Zen chips to drop before I make my choice. If nothing else, a price war works in my favor.
If it will offer tangible speed difference between my 4790k I might consider that. If it's like less than 10% difference then he'll no. The cost of swapping the platform will be to high to justify the change.
Maybe next year, when we see Coffee Lake 6 cores got no against 8 core Ryzen and Ryzen coming on the top, we can talk. But right now I'd rather spend the money on platform change on new GPU, as it would bring me more FPS than just CPU change
I'm comfortable with Intel and I don't think my 6600k is going obsolete anytime soon. I might consider AMD for my next build, but a lot of that decision depends on if AMD keeps up. Their 900 series chipset was so f%*#ing out of date it was pathetic. In a couple years when I build again, I will consider AMD if their stuff is still up to date like Intel keeps theirs.
Still waiting on full reviews of comparative benchmarks. I'm on x99 + 4.5GHz OC'd 5930k right now, but with a GTX 980 SC. (was waiting for the 1080Ti, but it never came..) However, I've already started ordering parts for a mini-ITX build. I just ordered the case and power supply. I was going to get a Asrock x99e-ITX and transfer my parts in (minus the too large graphics card) but I'll now wait to see how the 1800X performs on a X300 Ryzen ITX board before I make my final decision. Hopefully some new high end <195mm graphics cards will also be available.