How long will my build last?

I know i should be able to play most games on high and ultra with this but how long do you think this build will last until i need to upgrade so i can continue to play the latest games on medium to ultra settings?

Well, I can't give you a definite answer, but you should be good for a couple of years, and when that time's up, you can just upgrade your GPU.

Few questions. What is the overclock on the cpu/gpu? What games are you playing? Is this a computer you already have?

depends on heat cycles and hardware build quaility, sadly i couldn't give you a definitive answer since they're all different