Replace 2500k if only gaming?

[craptakular]

Ok, I know i have been making similar threads over the last few weeks, but I have an update:

I bought off the MM a 34" 21:9 144hz 2560x1080 monitor for a reasonable price.

I also have a GTX1080 G1 being delivered today to replace my GTX970 G1.

I have seen some benchmarks on youtube that seem to suggest that a Ryzen 1700 @ 3.9ghz could perform worse than my 2500k @ 4.5ghz purely for gaming.

Will my GTX1080 perform well with my 2500k 4.5ghz?

What does intel offer that isn't EOL that will boost my frames in CPU intensive games such as Arma 3?

 

[craptakular]

I'm going to go ryzen 1700 as it seems a sensible platform.

 

[craptakular]

I keep going around in circles.

The I7 7820x is like £500, can overclock to 4.8-5.0Ghz, but is hotter than the sun itself and I'm reading then requires a 360mm rad.

I'm reading no coffeelake until Sept - Dec 2017. I'm not sure I can wait that long.

AM4 platform is supposed to last until 2020/21, the 1700 is half the price and half as warm. Motherboards are cheaper even for a top end x370.

I want to get back into ARMA and get into Squads so a little concerned that 1700 would even be a step backwards from my 2500k. That said all I am playing currently is Battlegrounds.