Are those production results?
https://browser.geekbench.com/v6/cpu/1962935 says it was running at 13.54 GHz. https://browser.geekbench.com/v6/cpu/4913899 looks... questionable.
https://browser.geekbench.com/v6/cpu/1962935 says it was running at 13.54 GHz. https://browser.geekbench.com/v6/cpu/4913899 looks... questionable.
The linked Geekbench result from August running at 7614 MT/s clearly wasn't using CUDIMMs; it was a highly-overclocked system running the memory almost 20% faster than the typical overclocked memory speeds available from reasonably-priced modules.
So it doesn’t invalidate Apple‘s chip being the fastest in single core for a production machine.