we know just as much about the new intel chips as we do the amd ones. all speculation. amd are playing catch up with these chips to intels old chips. so the new ones are obviously going to be faster than whats out now. so if amds new chips are just on par with old intel tech with more cores then obviously they will be behind again with the new intel ones. thats just logic. also why amd launches there cpus at the end of intels old chips.
Intel haven't really released any 'new' processors for the last 4-5 years, all Coffee Lake did was increase the amount of cores and cache while supporting slightly (+266Mhz) faster RAM, before that Kaby Lake did basically nothing other than improve perf/watt while supporting slightly (another +266Mhz) faster RAM...The last change other than increasing clock speeds a bit that Intel made was with Skylake and even that's based on the same Core architecture that's been around for over a decade.