Portal Knights will require Radeon HD 7850 graphics card with a Core i3-2100 3.1GHz or FX-8120 processor to reach the recommended specs, achieving high graphics setting on 1080p. 4 GB will also be needed to achieve the Portal Knights rec specs and get 60FPS. Portal Knights needs a graphics card thats at least as powerful as a GeForce GTX 470/Radeon HD 6870 paired with Phenom 8450 Triple-Core/Core 2 Duo E8400 3.0GHz CPU to match the min specs. This PC setup will deliver 25-35 Frame Per Second at Low graphics setting on 720p resolution. Don't try and play Portal Knights without 4 GB, which helps get the 30FPS Another thing to consider is the DirectX capability of your GPU. Portal Knights needs a GPU capable of running DirectX 11.00. We suggest a 11 year old PC to play smoothly.