Ok, here is a list of what we need to know.
1) What the hell is xfr?
There is speculation on what it does, from straight overclocking to small micro overclocks to keep within tdp, to smart overclocking.
My best guess is that amd and their 100+ sensors are able to clock per core to what that core can do at its best, and go to it so long as it can be kept cool enough. The motherboard should tell the cpu the amount of power it can handle so the cpu isn't throttled by 95watts, and thanks to canardpc we know that the es was easily able to hit 5ghz, only limited by the validation board they used.
If this is smart enough to do this on a per core basis, we could see it throttle some cores and boost others durring games to hit the 4.5+ ghz range, now just for some kabby lake fun
78% hit 4.9
59% hit 5.0
28% hit 5.1
7% hit 5.2
Now if this was due to crap thermal paste (considering you can get over 20c cooler by replacing paste, most likely culprit.) or something else, keep in mind most people do not overclock at all something around 95%+ don't, so if xfr can boost the cpu to 4.5, it matches if not exceeds kabylake for normal people.
If its anything less then this, which it very well could be, then its worthless and suddenly negates the benefits of the 1700x and 1800x
2) Is the silicon lottery real?
With xfr, binning could be a real thing, and the 1800x could the cream of the crop with a 1700x or 1700 not able to touch it no matter what you do, same with the 1700x to the 1700. While I personally have no qualms with spending 500$ on a 8 core that will likely take me to the mid 2020's I do want to know if the binning is real and if it is, how much of a difference there is
3) The memory controller, is it good?
One of the leaks put out had the ryzen in passmark with absolute, you can't buy ram this bad ram. The issue is the people who tried to match the ram timings and frequency on their 6700k's could not get the same latency. So this brings up 3 possible issues
A) The ram used was significantly worse than stated
B) There was an issue with the bios
C) There is an issue with the memory controller
Some games are memory bound more so then cpu, I believe witcher 3 is an example of this where a memory overclock boosts fps more than a cpu
4) How far can the cpu be taken on stock coolers?
The wrath is close to a coolermaster 212 in performance, This was a cooler that could keep a piledriver cool at a 4.6ghz oc, curious if it is sufficient for a ryzen and in that case... just how much can a ryzen be taken with xfr?
5) Powerdraw in oc
Kind of a standard thing, if you oc or use xfr, how much more power does it draw then stock, as tdp =/= watts, I know you could see a fx processor pull several hundred watts, some nearing 500 if the people measured the power draw right (seriously doubt it but at a 225watt tdp not putting it passed it)
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This is all I can think of for unknowns that need to be known before people can make a decision on the cpu...
also as a final note to everyone claiming amd crippled intel by dual channel, funny thing is above in this thread there was someone who showed dual channel most likely improved intels performance.