I OC'd my 3570K to 4.5GHz at 1.250 voltage. I'm using a Noctua NH-D14. My idle temps are just below 30C and with multiple gaming sessions hasn't gone above 60C, I haven't done an overnight stress test yet, though.
Could I get this up to 5.0GHz with good temps you think? If so, what is recommended voltage? --- I'm bored at work...
You could depending on your chip. Do you need to? 4.5ish is more of an everyday OC, going up to 5 would just be fun for me to see what it takes to get there and then I'd back it off again. --- The Jeff Minter Llama360 Hardware Achievement - Unlocked after completing the Visualiser
The D14 is a beast, but I imagine that 5 GHz would probably be too much heat for it to handle. As for the voltage, you always want to use the least amount you need while being stable, and it varies by chip so you'd just have to work your way up. Good luck.
Is 4.5 to 5.0 even worth it? Would it raise my FPS in games further and be noticeable?
If it's a very small gain then might as well just stay at 4.5 with good temps.
Not for me. You've already got a storming CPU at 4.5 so I'd be more than happy to stay there as there's no way you'd bottleneck any GPU. It's really a personal choice as to how much you want to stress your chip. --- The Jeff Minter Llama360 Hardware Achievement - Unlocked after completing the Visualiser