NEW SYSTEM?

I am looking to possibly purchase a new computer for running ADOBE PREMIERE and AVID. The one I have has been great, but it's starting to show its age (especially with 4K projects). Here's what I currently have:

Mac Pro (Late 2013)

3 GHz 8-Core Intel Xeon E5

64 GB 1866 MHz DDR3

AMD FirePro D700 6144 MB

I use AJA IO4K to monitor video and audio (and sometimes go to tape)

and Promise Pegasus Thunderbolt 2 drives.

I want to stay with MAC. Would I notice an improvement is I purchase a imac pro like this:

Apple 27" iMac Pro with Retina 5K Display (Late 2017)

3.2 GHz Intel Xeon W 8-Core

32GB of DDR4 RAM | 1TB SSD

AMD Radeon Pro Vega 64 (16GB HBM2)

27" 5120 x 2880 IPS Retina 5K Display

UHS-II SDXC Card Reader

Thunderbolt 3 | USB 3.0

Also, when I use an Adobe Product like Premiere Pro with my current system, to get clean renders, I have to use RENDER ENGINE IN SOFTWARE ONLY MODE. Would this imac pro fix that issue? Thanks!