Well if it worked, not everything might work on since the GPU like sucks at real shading support. I know Team Fortress 2 can run that card but with low settings, so I do not know, but the plugin fails to compile the generated shaders, and no one is really into trying to fix it because some tried and no success.
:: System Specs ::
Operating System: Windows 7 Professional x64
Video Card: ATI Radeon HD 5770
CPU: AMD Phenom I X4 9550
RAM: 6GB DDR2
EXP Index: 999999.999999
Operating System: Windows 7 Professional x64
Video Card: ATI Radeon HD 5770
CPU: AMD Phenom I X4 9550
RAM: 6GB DDR2
EXP Index: 999999.999999