mgallo848 :
Approx 16.5% faster then the R7 2700x
Costs approx 35-40% more than the R7 2700x
Don't forget that the 2700X comes with a relatively capable stock cooler, while a 9900K won't likely come with a cooler at all, and if you want overclocked performance like that, you'll likely be looking at spending around $100 or more extra on cooling the chip. So, make that around 70% more. And of course, the added cost of a Z-series motherboard just to enable overclocking at all. : P
I would kind of think performance might actually be slightly better than those results though, seeing as the clock rates when overclocked like that should be at least around 20% higher than a stock 2700X's all-core boost, and I assume Intel still has a slight IPC advantage, unless more of that has evaporated due to the vulnerability fixes or something.
mgallo848 :
Sorry but that's not even close to being true. Intel will have 10nm CPU's in 2019. (which quarter in 19' is not known ATM)
Last I checked, their 10nm chips were not supposed to make their debut until near the end of 2019, which should be evident from these new 14nm CPUs not coming out until the 4th quarter of this year. So, I would not expect them to be out for at least another year. So probably not as long as they were trying to imply, but it's anyone's guess how their first-generation 10nm chips will perform compared to what's currently available. I'm sure they'll be more efficient, but they might not actually be much faster.