Call of Duty Modern Warfare 3 can run at decent framerates on the Nvidia GTX 1650 or GTX 1650 Super with the right settings. But this method will result in noticeably lower graphics. Yet, these GPUs are quite prominent for their price range.
Minimum
Recommended
OS
Windows 10 64-bit
Windows 10 64-bit
CPU
Intel Core i5 2500K AMD Ryzen 3 1200
Intel Core i7 4770 AMD Ryzen 5 1400
RAM
8GB
12GB
GPU
Nvidia GeForce GTX 960 AMD Radeon RX 470
Nvidia GeForce GTX 1060 AMD Radeon RX 580