What is your budget? Also why do you need full BW on GPUs? I assume it is not for gaming.
If money is not the concern, I would check with Saphire Rapid Workstations. They are overclockable and would you give you the highest CPU, low latency with plenty of PCI-E lanes (112) and memory bandwidth. I think threadripper is another option but Intel still has the best single thread performance.
On the other hand, it is possible that your expectations are unnecessary as others called out here.
If money is not the concern, I would check with Saphire Rapid Workstations. They are overclockable and would you give you the highest CPU, low latency with plenty of PCI-E lanes (112) and memory bandwidth. I think threadripper is another option but Intel still has the best single thread performance.
On the other hand, it is possible that your expectations are unnecessary as others called out here.