Other things that would matter are CPU cores, RAM of course, and having an SSD.
Using iMac (Retina 5K, 27-inch, Late 2015), 24GB RAM, 1TB HD with several SSD attached using Thunderbolt 2 connections, Processor 3.2 GHz Quad-Core Intel Core i5, AMD Radeon R9 M380 2GB Grphics card.
Things that would really contribute to needing a sleeping bag while it installs are 2 cores and a normal hard drive.
My GPU is not exactly ground breaking, benchmark 31%, yours benchmarks at 17%.
If I get a new marketplace product, I can still wait between 10 mins and half an hour for the shaders.
It’s quite possible, you might have to wait several hours, depending on the exact config.
Is the shader number moving at all?
**This is the first time I have tried to install unreal. Fails every time to install when I get to “34% - Compiling Shaders (2,558)…” the install at the time just stops, the installation process stops and closes. I have tried leaving the Mac attempting to install overnight (in case the installation is still happening even though the installation screen has closed) but installation hasn’t frustratingly continued, past the point stated above at which time the on screen installation window has closed (approx after running for one minute).
Many thanks **