How fast is the “new” Commodore 64?

Have not heard much about it since launch. Although, now that I look, it seems they are just shipping now.

https://www.commodore.net/product-page/commodore-64-ultimate...

RAM can be increased to 16 MB and CPU speed to 48 GHz.

The 64Ultimate goes to 64MHz, the Ultimate64 cartridge goes to 48MHz "only".

I’m sorry how many Hz???