If you need the best possible performance in After Effects, this workstation with AMD's Ryzen 5000 series CPUs is currently among the best you can get. There are certainly more expensive CPU options available, but the latest versions of Ae are not able to take advantage of higher core counts which makes these relatively affordable "consumer" AMD CPUs the current king of performance.
This platform supports up to 128GB of RAM, a range of NVIDIA graphics cards, and dual Thunderbolt 3 ports. 10G networking and a Blackmagic Deckink video monitoring card are also available.
If you are not sure which hardware choice is right for you we recommend reading through the Recommended Hardware section. And as always, don't hesitate to contact one of our sales consultants if you require assistance or a hardware configuration that is not covered by our recommended systems.