Originally Posted by Modz
Play metro 2033 if you really want to stress a OC, I have had OC's pass 30+ passes in prime, turn on metro 20 minutes in I would get a BSOD. In WoW i can literally run my unstable 4.3ghz benching setup and never crash.
Actually, I've noticed that newer games run much smoother and are more forgiving with overclocks that are slightly unstable. It's likely due to all the various memory leaks and other oddities that come from using an engine as old as Wow. I'm not saying Metro 2033 is easy on the computer, but that it is more forgiving as the engine is easily more solid. Framerates on average are a totally different story though.
I'm definitely stepping out of the argument whether the game is the bottleneck, or the technology used. I had always thought a tell-tale sign of bottlenecking was when cpu usage is pegged at 100%, and gpu performance is lower than 100%. I saw this a lot when using a single core on games such as Wow, and noticed a HUGE difference when upgrading to a newer cpu a couple years ago. I am willing to bet that faster and more efficient processors will
provide for higher framerates however. (Just changing overclocks has proven this to be true - as little as the improvements are, they are there.)