To check your PC for Oculus Rift compatibility and to ensure an optimal experience, please download this tool from the Oculus website:

Oculus Compatibility Tool

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