Re: GTX 260/280 Clock Throttling While in 3D Apps. An Explanation.
Just happened upon this thread because I was googling and trying to figure out what the issue was. I own a GTX 260 Core 216 and I've been playing Fallout 3 for a few days now and when I started playing tonight I noticed my frames were much lower than normal, couldn't figure out what was causing it finally I saw in GPU-Z that the clock rates weren't completely right.
That's when I discovered the new Low-Power 3D mode. It seems something bugged out and no matter what I did or how many times I exited and relaunched fallout it wouldn't go into full 3D mode. Once I restarted the computer it was fine and jumped straight to full 3D mode as soon as the level loaded.
It seems there are still some bugs to work out concerning when it chooses to go into low power mode. In the meantime is there any workaround other than restarting my comp?