Radeon HD 4890/4870/4850/4830/4730 (RV770/790 based): • DirectX 10.1 (Compute Shader 4.1, 4.0) and lower, • OpenGL 3.2 • OpenGL ES 2.0 • OpenCL 1.0 • Ati Stream (now called AMD Accelerated Parallel Processing or just AMD APP) • Double Precision (at 1/5th speed) this card shows 1.0 while newer cards ...