Buy your mid range GPU now while you can and just enjoy it, upcoming 4070 and 4060 Ti look potentially terrible value like the 4070 Ti and 4080 before it : r/pcmasterrace
NVIDIA GeForce RTX 3060 with 8GB memory has been tested, 17% performance difference vs. 12GB model - VideoCardz.com
NVIDIA GeForce RTX 3060 8GB GPU upgraded to 12GB memory gets 22% boost in Unigine 1080p Extreme benchmark - VideoCardz.com