Hier zie je links Direct3D en rechts OpenGL met S3TC.
Als je echter op maximale framerates uit bent, dan moet je kiezen voor Direct3D, aangezien deze (aanzienlijk) hoger scoort in de resoluties van 1024x768 (32-bits, High Quality) en hoger De benchmark komt van een P3-800@960 met GeForce 2 GTS...If you like to run Unreal Tournament at a resolution and bit depth greater than 1024x768x32 then you are better off using Direct3D and applying any nece ary tweaks to squeeze the most out of performance. If you run UT at 1024x768 or below then you will want to try enabling S3TC. Not only will you gain a boost in visual quality but also in performance as the minimum framerate does not dip as low as it does when using D3D. It is nice to be finally able to take advantage of the textures on the second disc that comes with Unreal Tournament. It was often joked that it was nothing more than a coaster for those who couldn't take advantage of S3's Metal API. Hopefully you didn't take this joke literally.De keuze is dus aan jezelf. Hogere framerate, of betere beeldkwaliteit.
Hier vind je een guide over het enablen van S3TC in OpenGL.