I'd suggest you take a look at previous topics, as this has been talked about before.
My general suggestion would be - go for a high clocked CPU with more cores, a good GPU with more CUDA or that other processing units AMD has, loads of RAM, and a fast and vast SSD. A dedicated workstation is a good choice, as it probably has error checking memory (ECC) and is expected to run very stable even under high load. A dual xeon workstation is an even better choice, as it will have double CPU core numbers. But then again, you might not need such a beast. Although Archicad does make some use of multiple CPU cores and GPU processing, it still is in an everlasting overhaul process and might take a while until it can use everything new tech has to offer. If you decide to invest into a brand new workstation model you will have one big advantage - you will be well equipped for the next few Archicad versions.
You can read more about that on Graphisoft Help Center web:
My workstation is way older than your computer and still does the job. It might not be as quick in some situations, but I have no problems handling larger project files.
| Archicad 4.55 - 26
| HP Z840 | 2× E5-2643 v4 | 64 GB RAM | Quadro M5000 | Windows 10 Pro x64
| HP Z4 G4 | W-2245 | 64 GB RAM | RTX A4000 | Windows 11