Hi, I need some help. I am looking to upgrade my iMac (Retina 5K, 27-inch, Late 2014), Processor: 4 GHz Quad-Core Intel Core i7, Graphics: AMD Radeon R9 M295X 4 GB I use this mac for video editing and other graphic related work and it takes quite a long time to render the files. What are my options here. Can I upgrade it to Intel Core i9-10850K Processor 20M Cache, up to 5.20 GHz What about the graphics upgrade?