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Pemalite said:
fatslob-:O said:

LPDDR3 running at 800mhz will net you a bandwidth of 12.8 GB/s. I'm sorry but I don't see the ram catching up anytime soon and that especially goes for the PS4. 

That last line is true. 

LPDDR4 is on it's way. :)
They could also increase the bus bit width and clockspeeds.
And, Tablet/Phone GPU's are actually rather bandwidth efficient, well. More out of need that is, plus you generally don't need to do 1080P 60fps on a tiny 4.5" screen so that helps, 720P or lower with upscaling and 30fps on a 4.5" screen looks far better than having that same resolution stretched over 30-80" of screen real estate for instance.

LPDDR4 will just double the speed as per usual. So 25.6 GB/s at 800mhz ain't impressive at all. You are right about mobile devices not needing much bandwidth but at the sametime they are not meant for performance critical applications such as games. I agree that these devices don't need a higher resolution because of their higher pixel densities. In any case for very mobile devices like the tablet for them to compete against home devices like consoles they need a much better GPU but their pretty much power constained and their memory needs to significantly improve and increasing the bus width is the way to go.