Hi everyone, if you are looking for your nVidia GPU optimal & recommended settings for Crysis 3, nVidia has released a program called GeForce Experience http://www.geforce.com/drivers/geforce-experience (http://www.geforce.com/drivers/geforce-experience)
Program works well and will automatically make the setting for your based on your nVidia DX11 GPU
Also, if you are experiencing a dxgi_error_device_removed CrysisEngine3 display error, you need to up your GPU voltage by 0.10 - 0.15 volt increment. The GPU bios may round it off to its tier voltage settings which is ok. Not sure about AMD cards but you can try upping voltage if you experience the same error