Hey, the 1900gt uses the same r580 gpu as the 1900xt...hmmmmmmm. Ya think the gt an be flashed with the xt bios, or is it the same, just with higher default gpu and mem clocks?
The GT is called the R570 and some early versions could be flashed, but none of the ones out now can be. There's a thread about this already, look it up for more info.