Both the ATI & NVIDIA belong to my son. The ATI is fitted in his machine and I fitted his old card to my machine to try them both out on other GPU projects. It is my intention to upgrade my PC once WCG, which is my 'main' project, has gone over to providing GPU compatible projects. I will then decide the best I can afford and ditch the GT 430 from this machine. At the moment I will let them run at MWay and Collatz to see if I can spot any ill effects....