If your monitor can refresh a maximum of 144 Hz, then you will be able to change the Screen Refresh Rate up to 144 on this menu. But, it works in conjunction with your monitor's screen refresh rate. This is only relevant if you have multiple monitors. The graphics settings in Warzone (and Modern Warfare) are categorized into four separate sections as follows: Display, Details & Textures, Shadow & Lighting, and Post Processing Effects.
Video: NVIDIA GeForce GTX 970 / GTX 1660 or Radeon R9 390 / AMD RX 580.CPU: Intel Core i5-2500K or AMD Ryzen R5 1600X processor.OS: Windows 10 64 Bit (latest Service Pack).DirectX: Requires DirectX 12 compatible system.Video: NVIDIA GeForce GTX 670 / GeForce GTX 1650 or Radeon HD 7950.OS: Windows 7 64-Bit (SP1) or Windows 10 64-Bit.
