Shamelessly copied from the
Oblivion Settings Guide
NVIDIA card Coolbits tweak
This is one of the greatest driver tweaks I have ever seen. At first, I couldn't believe my results.
But the benchmarks don't lie; I nearly doubled my framerates after applying this tweak. There is no
noticeable drop in quality and no apparent side effects. I encourage everyone to apply this tweak.
It really is pretty unbelievable. Steps:
1. Download and install the latest NVIDIA ForceWare drivers.
2. Download and install the "Coolbits" registry tweak:
http://downloads.guru3d.com/download.php?det=815
(To install, unzip then double-click the .reg file to apply the registry mod)
3. Go to Control Panel -> Display -> Settings tab -> Advanced -> GeForce XXXX (your card model)
4. Expand "Performance & Quality Settings"
5. Click on "Additional Direct3D Settings"
6. Change "Max Frames to render ahead" from 3 to 0.
7. Click "Apply" then "OK" to exit the settings page.
Start Oblivion and note the huge, huge difference in input responsiveness and framerate consistency.
Please note that I have heard that 7xxx card users have not been seeing much improvement from this
tweak. It may only relate to 6xxx series cards and below.