For my system, the solution for the stuttering in GLQuake was to disable dynamic lighting, so r_dynamic "0". For the timedemo, this only increaes the framerate by 1 fps, or 2 fps if vsync is disabled. For my system, the solution for stuttering in Quake2 was to disable dynamic lighting, so gl_ …

So far, I'm pretty disappointed with the Quake 2/3 results. They are horrific on the G450 with the PPRO-233. Well below the G200. But the Quake 1 results are VERY high, as if the driver has been tweaked for GLQuake but not Quake 2/3. I'm going to have to play with old driver versions, which are …