Like most software developers, Adobe maintains a list of system requirements for After Effects and Premiere Pro that can be used to help ensure the hardware in your system will work with their software. However, most "system requirements" lists tend to cover only the very basics of what hardware is needed to run the software, not what hardware will actually give the best performance. The processor (or CPU) is one of the most important pieces of a post-production. 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, the way that After Effects Premier Pro or Davinci uses the CPU means that it is difficult to be sure of how a given processor will perform just from looking at clock speed and core count - which is exactly why we perform testing on a wide range of hardware.