though I've never used the Matrox card, I would suspect that the Mx would dominate it in FPS games. The MX is quite a nice card, but I would say there is little need to buy a 64mb version of it. From what I understand there is little performance gain from it for the price premium you might pay. Of course, it is nice to have the extra RAM I suppose. Just be careful with all the new models though--the Mx200 is not worth your money.