i7-870

Hi i've been looking to upgrade my medion ms-7616 but i'm not sure of the components. Current spec ---> Gt 330 (Gddr3 768mb directx10) .... I3-530 .... 4gb ddr3 ram (Dual channel) 2x2 How i would like to upgrade ---> Amd Radeon RX 460 2gb .... I7-870 .... 8gb ddr3 (dual...