It will be based on the Epyc 7742 CPU.
AMD today boasted that its latest Epyc server processors were selected by the European Center for Medium-Range Weather Forecasts; ECMWF to create a new supercomputer.
It will be created on the basis of BullSequana XH2000 systems, which include Epyc 7742 64-core CPUs. As a result, the nameless supercomputer will be one of the most productive meteorological installations in the world. Unfortunately, the performance in the press release is not indicated.
But it is known that it will be commissioned next year. The supercomputer will allow the center to carry out forecasts with a higher resolution (about 10 km) and increase the performance of ECMWF computing systems by about five times.