yes i am interest also to know if that best is able to do anything in mining. I am planing to get one, and why not to use also for mining

I would be interested to see the Hash rate of my 6850k also if anyone has that information.

Maybe you could run a test and let us know the results.

Thanks.

http://monerobenchmarks.info/singleCPUINTEL.php
Search 8700k on that page.

Around 400 H/s seems possible with cryptonight.

https://www.nicehash.com/profitability-calculator/intel-cpu-i7-7700k-470ghz?e=0.1&currency=USD
Nicehash seems to choose Hodl as algo.
Could it be ROI Coin which is profitable?
According to Nicehash the 7700K get 360 H/s at cryptonight.
I Think you can get a bit more using a miner like xmrig.

With full load on cryptonight you can get 500h/s.
Check benchmarks on monerobenchmarks web site

Today got my 8700k overclocked to 4.9ghz + and with memory locked  got 540 h/s in cryptonight on nicehash 0.55$ day
Any one else got anything better ?

Wow that sounds really bad ... But the market is down right now.
How much power is it using?

Do you mean x16r? Because a GTX 1070 have 34,5 Mh/s on lyra2z
Is RVN algo profitable?

lol i think you mean LYRA2V2 (monacoin) a 1070 gets 34mh/s, on ZCOIN (lyra2z), a 1070 and 8700k do about the same, 1.1-1.3 mh/s
ZCOIN made the algo to try to be 1:1 in cost of hardware for CPU and GPU, a 500$ CPU hashes about the same as a 500$ GPU
RVN is x16r, and quite profitable, people ROI'd their whole farms of 1080ti's they regretted buying last few weeks on RVN,so nice.
2-3 times a year we get a coin that will ROI as many cards as one has in 3 weeks, RVN was the one so far in 2018

I got the fluctuating hash rates with the 8700 as well. On different PC's but with the same hardware. Sometimes 400, 350 or 280 - sometimes even as low as 150. Close and re-open and it can change. Tried with XMR Stak, 2.5 and 2.7. Also tried XMRIG. ll the same.