In Assassin's Creed: Hall of Valor, whether Assassin's Creed uses the CPU or the graphics card, you can refer to the following:
Assassin's Creed consumes the CPU required by the system. The CPU, memory and graphics card are very demanding. E31230v3 has 8G of memory and GTX9704G. Even with the highest special effects, it sometimes freezes. For ordinary configurations, you don’t have to worry about it.