Nvidia DSR - Dynamic Super Resolution

Yesterday I tried this out with FL Vanilla shader and it looked pretty good to me.
It is sampling as ex. a 4K monitor to a 1080p monitor picture. I read that it's an easy way off "reviving" old games in general.
My GC is 2x GTX 660 Ti and did have problems with 2x and 4x sampling

AMD calls this Virtual Super Resolution.

read more @Dynamic Super Resolution Improves Your Games With 4K-Quality Graphics On HD Monitors | GeForce

Looks like it's the same + some "rendering filter" (whatever that is)
This article is very specific about it Maxwell's Dynamic Super Resolution explored - The Tech Report - Page 1

Looks like Nvidia was "inspired" by Dark Souls 2 modded: Durante's GeDoSaTo enables downsampling, texture modding - PC Gamer