If we apply that math to the supposed RTX 3050, the RTX 3050 would perform just above a GTX 1660 Ti / Super and just below an RTX 2060.
If we went by core counts alone, a 1650 SUPER should perform within about 9% of a 1660 SUPER. However, even at 1080p, it's closer to 25% behind that card. A lot of that likely comes down to the reduced memory bandwidth resulting from reducing the number of VRAM chips. Seeing as Nvidia hasn't really been pushing much more VRAM this generation, with the 3070 having the same amount as the 2070 before it, it's very possible that the 3050 will have 4GB.
A 3050 with 2304 Ampere cores and 6GB of VRAM could potentially perform in-between a 1660 SUPER and a 2060, but with 4GB, it might not perform any better at rasterized rendering than the 1660 SUPER, and the limited VRAM would likely hurt performance more in demanding titles, especially moving forward. From an RT-capability standpoint, the 30-series cards don't really add much RT performance relative to the rasterized performance they deliver, so RT performance would most likely be a bit below that of a 2060 as well, which is already kind of borderline in terms of usefulness with raytraced lighting effects enabled.