. EDIT: Does not always appear to work for multiview setups! __________________________________________________ My framerate at Silverstone just went from average 55fps to 100fps with one setting change (SLI compatibility bits). This is with everything set to max (including both reflection settings) and using Level 4 AA + 4x SparseGrid Supersampling. Obviously I can't guarantee it will work for others but I thought I should at least post it. I am using a 690 GTX but I think the setting should work for other SLI setups too. Also apologies if the same thing has already been mentioned here - I haven't been able to read the forum much for the past couple of weeks. First of all you will need Nvidia Inspector to try this setting AND you must set your main Antialiasing through the rFactor 2 config program. This is important - the new SLI compatibility bits setting doesn't seem to make any difference if you use Inspector or Nvidia Control Panel to apply your main AA. You can however use Inspector to apply SparseGrid Supersampling, on top of whatever AA Level you selected in the rFactor 2 config. These are my settings (I will attach a pic of my Inspector setup too), rFactor 2 config - Level 4 AA selected. Nvidia Inspector settings, 'Antialiasing Mode' and 'Antialiasing Setting' should be set to 'Application Controlled'. 'Antialiasing - Transparency Mulitsampling' - I have this set to 'Enabled', but you don't have to use this. 'Antialiasing - Transparency Supersampling' - This is where you can set your Sparse Grid setting if you want it. 'Antialiasing - SLI AA' - this is worth enabling if you haven't used it before. It can improve AA performance with SLI setups. Apart from that you just need to change your 'SLI compatibility bits' to 0x00500005 - this is the change that gave me the big improvement. I had previously used the rFactor 2 default setting for this which is 0x02402005, and more recently I was using 0x82482005 (this had been recommended on this forum in the past). With the new setting (which it says is for the 'Windows System Assessment Tool') I have almost doubled my framerate on Silverstone. NOTE - I haven't tested this setting on Feels3 tracks, but I have noticed that sometimes when an AA setting improves performance on ISI tracks it can sometimes decrease performance on Feels3 tracks (and vice versa), so be aware of that. Thanks for listening!