There are some interesting things happening in the space of CPUs available for compute resources. One thing is use the GPUs, you see them for sale everywhere now. But GPUs are not great for hosting WordPress simply because of the cost. They are really optimized for AI applications and of course, computer graphics.
Still, plugins like Divi have become heavier as of late and depending on your use, you might opt to use premium CPUs in order to get edits done.
Can you just scale out the number of cores? The answer here is: no. Horizontal scaling or increasing the number of resources won’t do much since PHP is single threaded. If you have lots of requests coming in, then more cores can help. But to increase the speed of a single request, you simply need a better CPU.
Our CPUs are optmized for performance and price, but we also offer premium Intel processors for certain use cases. And one way to benchmark your CPU performance is to use the great https://github.com/sergix44/php-benchmark-script project. Just compare the time to execute the entire benchmark in different environments and the lowest time wins, simple as that.