I've noticed some hitching/stuttering in games and I'm 99% sure I've narrowed it down to clock speed variations. I can watch CCC during a game, and it will jump between 500, 880 and 960 MHz. It throttles down to 500 Mhz if the player is currently in a menu screen or talking to an NPC, and then it jacks back up to 880 or 960 when I (or my wife) get back into the actual gameplay, sometimes with a corresponding hitch/stutter. It doesn't make games unplayable or anything...it's just annoying and I would like to eliminate it. Anyway, I spent some time looking this up. I know there is at least one third party application available that will lock the speeds to be constant, but since I still want the lower clock speeds when we're not gaming, I would have to toggle this on and off every time we wanted to start a game. If that's my only option, so be it, but I'm hoping there's a better solution that will lower the clocks in 2D/desktop activity and raise them to a static speed when we're in game. Let me give you some more details about my set up. I'm gaming on a 50" plasma LG TV via HDMI from the PC, which is in an adjacent room. I haven't been able to determine if this same issue occurs when playing on on a single PC monitor, because I would have to ALT+TAB out of the game to see CCC, which probably would throttle the clock speeds. I'm using Catalyst 14.4 I do not have Afterburner installed right now, but based on what I've read elsewhere, it doesn't offer a solution. If that's not the case, by all mean please let me know. Second question: Graphics overdrive is disabled in CCC, with the GPU overdrive speed set at 960 MHz. I know the stock GPU clock on my R7950 is 880 MHz. Even though I have graphics overdrive disabled, as I mentioned above, the GPU clock still often goes up to 960 MHz during games. Should that be happening? I did buy this card used....is it possible this has been set in the card's BIOS somehow? If I enable graphics overdrive, the fan speed immediately jacks up to 70% right there in desktop, which is totally unnecessary. Might have something to do with the "power level" setting, which I admit I haven't taken time to research yet. That's something I'm not familiar with, because I never saw it as an option in CCC when I had my 6870 HD.