I can't find any settings to adjust pixel interpolation or the like. There are also no settings to turn off powermizer, but even with the max performance profile the powermizer is enabled, so I can't point the finger at powermizer, but I can't turn it off either. I can't find any correlation in GPU-Z between the pixel issue and GPU clock speeds or GPU loads.
I can't get the behavior to occur while using the "Maximum Performance" profile (regardless of whether I adjust that profile to the same settings as any other profile). The core/memory clocks drop to the 400mhz and then to the 135mhz range far more often and far sooner with other profiles, but that's the only thing I notice. I do find that the GPU load is frequently higher while on other profiles. Another thing I see is that the Nvidia 188.25 drivers have crashed a couple times on me. The event message I get is Event 4101 Source "Display" - "Display driver nvlddmkm stopped responding and has successfully recovered." This has happened at least once at the same time that the Power Manager stopped responding and crashed.
Another thing I do notice is that while playing video games the GPU temperature rises to as much as 66C (150F). Is this a reasonable temperature to expect while running heavy graphics applications?
For now I'm just going to live with the max performance profile customized to the more energy efficient settings. I'm hoping, since the 188.25 drivers are still not mature that all this gets resolved in a driver update later on.
I should add, here is a demonstration of what I'm seeing. I can't screenshot the problem because it seems to be at the hardware/driver level. Keep in mind that when it does occur, the pixel shifting is across the whole screen and is not bias towards text or graphics.
