What are the system requirements for playing Call of Duty: Modern Warfare 3 in 4K? For 4K gaming, you'll need Windows 10 or 11 64-bit, Intel Core i7-8700K or AMD Ryzen 7 2700X CPU, 16 GB RAM, and a high-end video card like NVIDIA GeForce RTX 3080 or AMD Radeon RX 6800 XT, along with a 149 GB SSD.