Hearts of Iron IV System Requirements

If your PC meets the minimum requirements (Intel Core i5 750 or AMD Athlon II X4 630, Nvidia GeForce GTX 470 or AMD HD 5850, and 4 GB RAM), you can run the game, but expect lower graphics settings and potentially slower performance, especially during late-game scenarios with lots of units.

At a minimum, you'll need an Nvidia GeForce GTX 470 (1.28 GB) or an AMD HD 5850 (1 GB). For a smoother experience with higher settings, an Nvidia GeForce GTX 570 (1.28 GB) or an AMD Radeon HD 7970 (3 GB) is recommended.

The game requires at least 4 GB of RAM to run. However, 6 GB of RAM is recommended for better performance, especially when playing with mods or during longer campaigns.

While it's *possible* the game might launch on some newer integrated graphics solutions, it's highly unlikely you'll have a playable experience. The game is quite demanding, and a dedicated graphics card is strongly recommended.

The 'best' settings depend on your hardware. Start with the 'Medium' preset and adjust from there. If you experience lag, lower settings like shadows, water detail, and tree quality. Experiment to find a balance between visual quality and performance.