I have an Athlon X2 5000+ and a graphics card. I played League Of Legends like 5 years ago in my mother's computer and I remember it had a Pentium. The game runned pretty fast and I remember she had a 32 bit PC in her laptop. Now, I have a PC and I've been playing LoL but with some lag. I guess that Pentium was better than my old Athlon. I have 4gb of RAM.