http://community.bistudio.com/wiki/arma2.cfg
GPU_MaxFramesAhead=1000; setting not available in UI, supported values 1 to 1000 (0==driver), May lower 'Mouse lag' by GPU render-ahead buffer
GPU_DetectedFramesAhead=3; written by engine each start, changing it manually has no effect!
Inutile donc, quel est ce tuto si pertinent que tu as trouvé?