https://wccftech.com/ddr5-memory-60-more-expensive-than-ddr4-will-take-2-years-to-reach-price-parity-first-benchmarks-leak/

Intel's 12th Generation Alder Lake Desktop CPUs launch in a few weeks and accompanying them would be new 600-series motherboards & DDR5 memory kits. In a recent blog post, MSI revealed that initial prices of the DDR5 memory kits would be much higher than DDR4 kits but prices would lower gradually as manufacturing and yields increase over the next couple of years.

While initial DDR5 memory kits would have their ups and downs, the new standard does bring a huge increase in memory bandwidth (at the cost of latency). With JEDEC specs starting at 4800 & going up with gaming and overclocking-ready kits, prices will differ. Leaked benchmarks of Intel's Alder Lake CPUs have shown that the new chips will only benefit from high-speed memory kits as the performance difference between existing DDR4 and entry-level DDR5 memory could either be the same or in some cases, worse.