good temperature to run a evga gtx 760 at

[voljin]

I recently bought http://www.evga.com/products/Product.aspx?pn=04G-P4-2766-KR and I'm wondering what's a good temperature to run the card at. In evga precision x the default is 80C so I decided to increase the power to 110% and leave the prioritized temp at 80C. The card runs at 1202Mhz clock in the benchmark that's included with the card and has no problems with hitting 80C, but I could get lower temps, for example if I manually set the fan to 100% the temperatures drop below 70. I'm new to overclocking or just enthusiast pcs in general and am wondering what some general guidelines are.
ps somewhat related, I have a i5-3570 which idles at 30-40 and peaks at sometimes up to 60C, are those good temps? All air cooled

 

[ihog]

80C is fine.

 

[cookybiscuit]

Stick below 90C and all will be well.

 

[voljin]

And what's the best way to OC my card? Do I just keep the temp how it was and push the power slider as high as it goes in evga precision x or should I use the gpu/memory clock rate offsets? I suppose I should start a new thread for that, eh?