What new processor, computer for Premiere Pro?

Take these opinions with a moderation because they are trying to sell high end tower rigs. However they have some of the most comprehensive test results of any site. (they can afford to with the markup they put on these high end rigs)  

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The processor (or CPU) is one of the most important pieces of a Premiere Pro workstation. While GPU acceleration is gaining traction, right now your choice of CPU is usually going to make a much larger impact on overall system performance. However, be aware a CPU that is theoretically more powerful is not always better since there is a limit to the number of cores that Premiere Pro can effectively take advantage of. This is one of the reasons why an expensive dual Xeon workstation is no longer a good choice for Premiere Pro. With the core counts available in modern CPUs, a relatively standard workstation CPU will easily outperform a xenon at a much lower cost.

What CPU is best for Premiere Pro?

The best CPU for Premiere Pro depends heavily on what you will be doing and your budget. For workloads that are primarily using H.264 and H.265 (HEVC), Intel’s Core i9 14900K does a great job – thanks to its built-in QuickSync functionality – and is very reasonably priced. When working with RED footage, on the other hand, AMD’s Threadripper 7970X and 7980X top the charts. And as new models come out these may be usurped, so check our CPU performance articles.."     Here is the site.  https://www.pugetsystems.com/solutions/video-editing-workstations/adobe-premiere-pro/hardware-recommendations/#:~:text=The%20processor%20(or%20CPU)%20is,impact%20on%20overall%20system%20performance.