Studio Guerrilla Games shared great news on their YouTube channel. The developers talked about how the game will differ from the console versions, and also announced August 7 as the official release date.
First, the PC version will support ultra-wide monitors. Players will be able to change the frame rate, use dynamic vegetation, and get improved reflections. The controls will be changed exclusively for PC, there will be a built-in performance test, which for obvious reasons is not needed for consoles. Right now, you can pre-order Horizon Zero Dawn by heading to the game on Steam or the Epic Games Store.