All of the FXes were designed with a major Pixel Shader defect, and are worthless for anything other than OpenGL games, and most especially the FX 5200/5500 (same core) because even in OpenGL, they run like fatigued snails.
The 6200 also has some defects, but mostly it's just as slow as the FXes already discussed. Way too slow for games newer than about 2003 or so, other than Guild Wars and WoW (or most any MMO, since those have very low entry requirements).
If you really want to play games, other than the casual 2D type, avoid any card with "550" in its name. That X1550 is slow, also. It's just a slightly warmed over X1300. The minimum performance level number to look for is "600".