CPU Help

[scheak80]

I'm going to purchase one of the refreshed 17in Dell Precisions (unless someone can convince me to go with the 15in, but I can't see the benefits over the 17). I'm having trouble deciding on the CPU and I was hoping to get some help here. I'm mostly going to be using this thing for After Effects (motion graphics) and Premiere Pro (video editing).

Here are the specs for the whole unit:
Nvidia Quadro 3000 RTX
16gb RAM (will upgrade later to save some money)
17.3" UltraSharp UHD IGZO 3840x2160 AG NT,No WWAN,IR Cam/Mic,w/Prem Panel Guar 100% Adobe Aluminum
(I'm seriously on the fence about that display because 4k might be a bit much for a laptop. They do have a 1920x1080 with 100% color).

Here are the CPUs I'm stuck on:
Intel® Core™ Processor i9-9980HK, 8 Core, 16MB Cache, 2.40GHz up to 5.00GHz Turbo, 45W
Intel® Core™ Processor i9-9880H, 8 Core, 16MB Cache, 2.30GHz up to 4.80GHz Turbo, 45W, vPro
Intel® Xeon E-2276M, 6 Core Xeon, 12M Cache, 2.80GHz up to 4.70GHz Turbo, 45W, vPro

 

[hang-the-9]

For laptop size screens, unless you really want extra window space, 4k is too much.

For CPU, really up to you, I'm sure cost is different, speed will be close enough that you can just let the cost decide. If you don't care about the cost, get the fastest CPU.