Après pas mal de temps à chercher un compromis entre qualité et fps, j´ai réussi à faire ce fichier autoexec.cfg.
Pour info ( ma config en profil), en faisant le bench timedemo en 1024*768, détails high j´obtiens 46.8 avec tout activé dans les options avancées SAUF Vsync et AA et sinon sans les ombres j´obtiens 60.2.
seta r_geominstancing " 1"
seta r_showDynamic " 1"
seta r_useScissor " 1"
seta r_depthbits " 24"
seta r_stencilbits " 8"
seta image_useCache " 1"
seta image_cacheMegs " 256"
seta image_cacheMinK " 20280"
seta r_renderer " ARB2"
seta r_colorbits " 32"
seta r_useGL2 " 1"
seta image_useNormalCompression " 2"
seta com_showFPS " 1"
seta g_doublevision " 0"
seta image_depth " 2"
seta image_size " 0"
seta image_compressBump " 1"
seta image_compressDiffuse " 1"
seta r_useShadowVertexProgram " 1"
seta UseGLLighting " 1"
seta r_useShadowProjectedCull " 1"
seta image_compressSpecular " 1"
seta sys_cpustring " AMD w/ 3DNow!"
seta r_skipBump " 0"
seta g_showBrass " 1"
seta g_muzzleFlash " 1"
seta radiant_entityMode " 0"
seta gui_mediumFontLimit " 0.60"
seta gui_smallFontLimit " 0.30"
seta win_ypos " 22"
seta win_xpos " 3"
seta sys_lang " french"
seta r_cgVertexProfile " vp30"
seta r_cgFragmentProfile " fp30"
seta r_forceLoadImages " 1"
seta r_mode " 5"
seta r_stencilbits " 8"
seta image_usePrecompressedTextures " 1"
seta image_useCompression " 1"
seta image_downSizeLimit " 512"
seta image_ignoreHighQuality " 0"
seta image_downSizeBumpLimit " 512"
seta image_downSizeSpecularLimit " 128"
seta image_downSizeBump " 1"
seta image_downSizeSpecular " 1"
seta image_downSize " 1"
seta image_forceDownSize " 1"
seta image_roundDown " 0"
seta image_lodbias " 0"
seta r_preload " 1"
seta r_useCachedDynamicModels " 1"
seta r_skipBump " 0"
seta r_skipSpecular " 0"
seta r_multiSamples " 1"
seta r_shadows " 1"
seta r_useOptimizedShadows " 1"
seta r_useTurboShadow " 1"
seta g_projectilelights " 1"
seta g_bloodEffects " 1"
seta g_decals " 1"
seta g_showPlayerShadow " 1"
seta image_anisotropy " 1"
seta image_filter " GL_LINEAR_MIPMAP_NEAREST"
set com_allowConsole " 1"
A vous d´essayer et de faire quelques modifs si nécessaire.