The Oculus Rift requires a TON of GPU power to put out the recommended 90 FPS; frankly if you want to invest in the going VR I'd recommend going with a system with 2 GPU (SLI or Crossfire.) If that means modifying the PC yourself or paying someone to build it for you, but I advise either a very powerful card or two GPUs, frankly I prefer the two cards over 1. This is just my opinion.