It's an i7 6700k.
For that CPU with overclocking 80c is good, I would make sure it did not reach 90 even at the max temp. That is what you want to look at, not just the average. You want a working CPU over a few more % of speed. Killing your CPU with too much overclock and heat is probably not something you want to do to get a bit of extra speed from an already fast CPU at stock.