In this day and age, you don’t need to get a huge computer to bring lots of power to your gaming room. Take the CORSAIR ONE ELITE PC for instance: it is a compact gaming PC with an Intel Core i7-8700K, GTX 1080 Ti, 480GB M.2 SSD, 2TB HDD, and 32GB DDR4. It is ready for VR gaming.
The processor has 6 cores to take on all your computing needs. With custom GPU and CPU liquid cooling, the machine only produces about dBa at idle.