If you want a cheaper 6 or 8 core from AMD then buy a 3000 series processor.I only care about price. £450 for the cheapest 8-core and £300 for the cheapest 6-core.
That's not cheaper than Intel as you make out. As you will know, Intel are now being called the "perf/$ choice".
Rocket Lake will likely see nice perf improvements and still be cheaper than AMD.
For this discussion your focus should be on price/performance for all CPUs on the market, which means AMD 3000 & 5000, and Intel.