Robert Motyka @robertmotyka • Joined Sep 2011 • Active 6 years ago Remove Connection Are you sure you want to remove from your connections? Timeline Profile Connections Photos Forums Points Leader Badges Discussions Replies Favorites Discussions Replies Favorites Forum Replies Created Robert Motyka September 4, 2011 at 10:43 am in reply to: Nvidia GTX 285 vs FX4800 I have Mac Pro, model 4.1 with Radeon HD4870 and I am planning to replace the video card to nVidia GTX 285. Is it necessary to use two video cards, or I can run just one Radeon HD4870? Cheers.