- Seems to only work with Radeon Pro: works with WIndows 8.1 : Radeonpro is a lightweight graphics utility . - If you use steam, the differences will actually show in screenshots, unlike manually adding sweetfx files.. - Another method would be Sweetfx + eFx. Then just replace the preset with mine (sweetfx_settings.txt) ==== Note: Radeon pro works with any card, nvidia and amd. Doesn't matter. Guide here: http://goo.gl/c9OUNu