To check your PC for Oculus Rift compatibility and to ensure an optimal experience, please download this tool from the Oculus website:
For reference, here are the recommended specifications for Oculus Rift:
Video Card: NVIDIA GTX 970 / AMD R9 290 equivalent or greater
CPU: Intel i5-4590 equivalent or greater
Memory: 8GB+ RAM
Video Output: Compatible HDMI 1.3 video output
USB Ports: 3x USB 3.0 ports plus 1x USB 2.0 port
OS: Windows 7 SP1 64 bit or newer