the battle between AMD and Nvidia is heating up again but not in the GPU segment, in the mobile CPU segment.
although AMD is far cry from mobile CPU, but their APU are aiming for it. on the other hand nvidia is already in the mobile segment with tegta CPUs.
here is a bit of background - AMD aquired ATI so that they can go for their fusion strategy.. i.e. combining GPU and CPU and use both of them for compute purpose. intel already had their GPUs but are now leveraging powerVR technologies to advance their sloppy GPUs.
this left Nvidia as they didnt had any x86 license and hence started GPGPU on their own.
but the best solution was to get an ARM licence and thus tegra was born.
back to present - now both AMD and nvidia wants fully integrated GPU and CPU (right now the CPU house both graphic core and CPU core), nvidia is betting on ARM which is power efficient and AMD is betting on X86 which now scaling to the power level ARM. who will win? i think both will.. and competition is good for us consumers too.