I think the answer is in the current market.
You have the GTX1050 and the RX460 as the lowest performing retail cards of this generation. Everything else is making its way into mobile. With the occasional OEM card making an appearance.
So they are basically giving up on the discrete low end. Intel has their Iris Pro graphics and the latest generation of that is probably close, but not quite a GTX750.
AMD hasn't released their new APUs, but when they do, they will probably beat the crap out of Intel again, both in CPU performance and iGPU performance, at least from a cost perspective.
I'm not sure if any fabs are still making kepler chips, but it is possible. Always seem to be plenty of GT700 models around. Not even seen any die...