Phantom Doctrine will require Radeon HD 7950 graphics card with a Core i5-2550K 3.4GHz or FX-8300 processor to reach the recommended specs, achieving high graphics setting on 1080p. System memory required for Phantom Doctrine is 8 GB performance memory. Don't try and play Phantom Doctrine without 8 GB, which helps get the 30FPS Another thing to consider is the DirectX capability of your GPU. Phantom Doctrine needs a GPU capable of running DirectX 11.00. Recommended needs around a 10 year old PC to run.