I have an msi rx800(x800xt platinum).I have to turn my graphics down in fear and sometimes my unreal tournament gets laggy when theres a lot going on and other games are just a little laggy at full graphics I was wondering if i should upgrade? do the new cards x1800xt and the new gtx7800 512mb cards give enough performance to justify an upgrade or should i wait for something comming soon.im not sure but if i upgrade i gotta spend more money which i dont mind if the performance is there.i dont upgrade for a few extra frames but if the new cards perform a decent amount better than my x800xt i might buy one.what do you guys think?