I'm not with Laminar Research, just a fellow simmer in the UK. I'm also a qualified computer technician who builds his own bespoke PC's.
With that in mind, I note that your existing CPU & GPU are from AMD and I would normally say that Intel products are generally considered to be more superior than AMD.
However, in terms of your existing AMD Ryzen 5 CPU, it is actually, in this case, far more superior than the Intel i7-4790K CPU you have referred to. The Intel i7-4790K @ 4.0GHz is five years old now and only has 4 cores and 8 threads, whereas the AMD Ryzen 5 @ 3.6GHz is brand new this year and has 6 cores and 12 threads.
The effective speed of the AMD is also around 17% faster than the Intel. Please see photo below. (ALL COMPARISON DATA COURTESY OF USERBENCHMARK.COM)
With regard to graphics cards, I believe that you have an AMD RX5700 8GB (??) which is brand new on the market. When compared to the two year old NVIDIA GTX1080 8GB, the margin of difference in effective speed is actually a nominal @ 3% in favour of the Intel.
As far as RAM is concerned @ 32GB, there should be no issues with this, as it is more than capable when running XP11.
All in all then, I would suggest that you leave your PC spec well alone for now and wait for further XP11 developments later.