There's no general rule of thumb for determining what Graphics Card/CPU combo is best but if the CPU was a mid to low end CPU 18-24 months ago there's a good chance it's already at the low end of minimum system requirements.
Enweghị usoro iwu isi maka ịchọta ihe Kedu Kaadị / Kaadị CPU kacha mma mana ma ọ bụrụ na CPU dị n'etiti obere njedebe CPU 18-24 ọnwa gara aga bụ ezigbo ohere ọ dịlarị na obere njedebe nke usoro kachasị mkpa.