We do not claim to have the perfect multi-GPU solution with Civilization: Beyond Earth, and our current implementation has does have some limitations. Our split-screen rendering probably won’t get the same frame rates as AFR techniques, and we are currently limited to 2 GPUs. Some machines (especially those with slower CPUs) may not see high performance gains, and the highest gains will be seen at higher resolutions. However, we believe the time is ripe for multi-GPU machines to provide a user experience just as good as single-GPU systems, and with the explicit multi-GPU control provided by AMD Mantle we have started working to make this a reality.