Oh look a piece that include the very GPU I use!
I've tried this, I've attempted to use RT for photomodes and gameplay, and yes my 1660ti will manage it (with noticeable performance hits), however every single one of the GPUs in that article is a massive step about what the PS4 Pro, which roughly runs an AMD 470, take a look at the benchmark against the 1660ti I run.
- +80% over a PS4 Pro
Even the lowest spec GPU in that comparison is a significant step about the PS4 Pro's GPU
+40% over a PS4 Pro and the 1060 is only just able to manage the RT!