PC System Analysis For Amnesia: Rebirth Requirements
Amnesia: Rebirth requires at least a Radeon HD 5970 or GeForce GTX 480 to meet recommended requirements running on high graphics setting, with 1080p resolution. This hardware should achieve 60FPS. Your GPU is expected to be able to deliver DirectX 11. In short you need a 10 year old PC for best Amnesia: Rebirth performance.