Better go for 2313ax rather than 2231tx. I own 2005ax with amd a8 processor and I get better performance than 2231tx(a hostelmate has this one) in DX11 AND DX10 GAMES. DX9 games play almost the same. And not to forget that is amd a8. I believe that the amd a10 will have far better gaming performance. So I'll advise you to either go for amd a10+7670 or intel core i5+7670(better option)
Better go for 2313ax rather than 2231tx. I own 2005ax with amd a8 processor and I get better performance than f(a hostelmate has this one) in DX11 AND DX10 GAMES. DX9 games play almost the same. And not to forget that is amd a8. I believe that the amd a10 will have far better gaming performance. So I'll advise you to either go for amd a10+7670 or intel core i5+7670(better option)
Your hostel mate is daft, tell him to update drivers to UNIFL 13.1, A8 is a lot slower than i3, i3 competes with A10 and beats it in 99% benchmarks, i5 leaves A10 in dust: Intel Core i3-3110M Ivy Bridge versus i3-2370M Sandy Bridge (page 1: Sandy Bridge versus Ivy Bridge, Core i3 versus i5) - BeHardware
And afaik Dual graphics only woks in two games, google it, it actually decreases performance in a lot of titles, specially newer titles like AC3, Dirt 3 works, and some say FC3 does, but that's it.
Right now, the 2049TX @ 36k is the best sub 45k option, if not the 2313AX is a good idea, but i3 models are just as good.