Assassin's Creed 2 System Requirements

If your PC meets the minimum requirements (Intel Pentium Dual Core E2140 1.6GHz / AMD Athlon64 X2 3800+ 2.0GHz, NVIDIA GeForce 6800 / ATI Radeon X1600, 1.5GB RAM), you should be able to run the game, but likely at lower settings and frame rates. Expect performance issues if your specs are below these.

At a minimum, you'll need an NVIDIA GeForce 6800 or an ATI Radeon X1600. For a smoother experience at higher settings, an NVIDIA GeForce 8800 GT or an ATI Radeon HD 4850 is recommended.

Assassin's Creed 2 requires a minimum of 1.5GB of RAM. However, 2GB of RAM is recommended for better performance and stability, especially at higher settings.

It's unlikely Assassin's Creed 2 will run well, if at all, on most integrated graphics solutions available at the time. The game requires dedicated graphics cards like the GeForce 6800 or Radeon X1600 to function properly.

The best settings depend on your hardware. Start with medium settings and adjust from there. Lowering shadow quality and texture detail can significantly improve performance on lower-end systems. Experiment to find a balance between visual quality and frame rate.