Soundwave on 06 December 2014
Uncharted 1-2 had a bigger leap though because the PS3 was a more exotic architecture that took a big toll on devs to properly utilize the CELL processor and those were the days of developers first getting the hang of HD graphics/shaders. So as expected there was a larger learning curve last gen.
I don't think you'll see that same kind of jump from Uncharted 4 to 5 (say) as the PS4 is a much more straight forward chipset.
