amogachi44 :
cookybiscuit :
Nope, the card will be 5 years too slow by the time it dies.
So what is a good OC for it?
On a side note (this probably deserves it own question too lol)
During Cutseans I've seen artifacts flicker randomly on clothing etc.
Also I have an annoying amount of color banding that is off and on (this has nothing to do with the Screen (I've tried it on multiple with the same problem) some games like GuildWars 2 and Crysis 2 while others like Tomb Raider don't.
Haha you might want to go post that in overclocking, I don't have much experience with GTX670 OC'ing so I can't really offer you anything specific.
As a rule you slowly increase the core frequency in increments of 5% on what its original value is until you have a benchmark crash then take it back in little steps until you find something stable.
If you have a voltage control, you can crank it right up (just make sure its not too high, voltage is generally limited in the bios so you wont have an issues doing it in afterburner but just to be sure.)
I'm not too sure about boost and other features so thats where one of the NVIDIA guys will be able to help you.
I'd advise against experimenting with the memory until you're more experienced since thats generally the first cause of artifacting and offers a pretty insignificant performance gain especially at your resolution.
Your game issues might be a driver related since it only happens in certain games, try restoring the settings in NV control panel (if its still called that) to their defaults and see if that helps. Also verify that your drivers are up to date.