Both 32bit and 64bit. It works perfectly with all cards that can run DirectX9 games and support shader model 3. (that's all cards since the Ati Radeon X1xxx and Nvidia Geforce 6xxx series) ...

The latest Unity 4.3 is currently primed and ready for the PS4 and it brings with it DualShock 4 and Shader Model 5 support.

Ubisoft Montreal, the makers of the excellent Splinter Cell: Chaos Theory, have release patch 1.04 - bringing a Shader Model 2.0 path to the game for ATI's current hardware. There are some ...

Shader Model 3.0 Explored @ [H]ard|OCP: "NVIDIA recently released screen shots to the media using the FarCry engine that exclaim to show the advantages of using Shader Model 3.0 in a game.

So in case you're new to SweetFX Shader Suite (or just SweetFX), it's a mod built on the InjectSMAA shader injector, that allows you to apply a suite of post processing shader effects to your games.