https://wccftech.com/intel-ice-lake-xeon-w-3300-workstation-cpus-rumored-to-power-next-gen-apple-mac-pro-2022/

Intel's 3rd Gen Intel Xeon Scalable processors (code-named “Ice Lake”) are the foundation of Intel's most advanced, highest performance data center platform optimized to power a broad range of workloads. Intel introduced the new processors and the platform they power on April 6, 2021. (Credit: Tim Herman/Intel Corporation)

Apple might be using Intel's next-gen Xeon W-3300 Ice Lake CPUs to power their brand new Mac Pro coming this year. The rumor comes from YuuKi_AnS who has been providing insights on the Intel Xeon families for workstations and servers for a while now and has been quite accurate with his leaks.