As said in user manual the hardware requirements for 4K:
Minimum CPU requirements: Intel Core i7 (4 cores)
Recommended CPU requirements: Intel Core i7 (6 cores), AMD Ryzen 7 (8 cores)
It is general advice. Of course the best solution is to check yourself your file with your hardware. If you have opportunity to get it home for test.
CPU load and GPU load must be below 90% while playback. Test duration 60 seconds minimum to detect is overheating and throttling are happen.