i7 870 enough for Dragon ball Games

> Will i get increase in fps?
Yes, almost anything from the Core family is better than some random Athlon.

> If yes how much i get with these games?
Don't know, but you can try it since you have the CPU now. I doubt you'll get good speeds with such an old CPU though.

Thanks 
one more question is my 5770 with opengl enough for rpcs3 since it doesn't support vulkan