Originally Posted by Rollo
I like the factory OCd cards because they're guaranteed to run at the higher speed for the life of the warranty, and often come with better cooling.
Other than ones with a different heatsink and fan, all overclocked ones I have seen are the same as reference models.
Factory overclocked cards are never clocked much higher than the reference ones to start with. I upgrade my components all the time and have never had issues when clocking to the overclocked versions. I must say, I never stop there though. I always want more speed.