Without doubt the stars of the GT75 Titan specs show is the Intel Core i9 CPU and Nvidia GeForce GTX 1080 GPU, the latter of which we will deal with later on in this review. And, as you can see ...
Generally, a GeForce GTX 1660 Ti or a Radeon RX 5600 XT/RX 6700 (or higher, in either case) should suffice as the floor for VR. Naturally, more demanding VR games will benefit from superior GPUs.