So I have this A8-7600 and bought a R7 250 (was supposed to be a R7 240 but the store was out of stock) because I was planning on trying out this "dual graphics" but then I noticed that the iGPU on A8-7600 is a DDR3 (or was DDR4 correct me if I'm wrong) and my R7 250 is a DDR5.. will there be a problem if I dual graphics them?