Quote Originally Posted by NecroDOME
Try DirectX or OpenGL, they used it in the time when of 300MHz computers and back. (if that's what your looking for)
I was going to say something similar... it's not so much what you use, it's what you do with it that governs performance...

As NecroDOME says, OpenGL and DirectX should be fine, providing you don't put them under too much strain. HalfLife 2 running DirectX 8 (I think) on my old Athlon 800 with a GeForce FX5200 graphics card... it ran all right providing I didn't turn the resolution and detail up too much.