you have my same setup lol, 2600k and we have the same card!
Nice, I haven't found the need to upgrade the 2600K yet.
I played Witcher 3 for a short while. I only had time to wander around for 30 minutes. Am not that far into the game - looking for Ciri in Velen.
There's an area, a forest outside the abandoned village in White Orchard that I've found to be one of the most demanding in the game so far. Especially at night, it really pushes the gpu to the limit. I changed time of day to night and sat there for around 15 minutes. The hottest temp I saw reached 71c, it did not go higher, it would occasionally drop to 70 then go back up to 71. Was playing with aforementioned oc and fan set to 61%. It did not crash:
I wandered around some more in Novigrad and Velen on foot and on horseback, didn't crash or get any artifacts as well, max temp stayed at 71c:
I was rendering at 1920 x 1080 using these in-game settings (I haven't made any changes to the ini yet):
It seems all good and stable on my end... but as I mentioned earlier I only played for half an hour and am still in the beginning stages. Is there a part of the game I haven't reached yet that's prone to most crashing with overclocks?