A quick look finds a nice laptop but gamers and research? What a bad mix that is. I'd get the intel i5 model with the good GPUs but the one I looked at didn't benchmark well.
Next time, supply the exact models so I don't have to guess. And be sure you can live with lower life spans. Gaming is still a life span reducer.
I'm still studying and I need a new laptop for the purpose of my research. Along that way, I need a laptop that suits for gaming and watching video with HD.
So I plan to buy Samsung Series 5 with AMD A6-4455M , is it worth for me?