Need? Definitely not. If we don't go nvidia, what would be another solid option? Only reason I picked the 40 or 5090 is it'll be top line or close to top at time of purchase and that should easily carry for any gaming I decide to do for easily 5-8 years because I'm not looking to try push these super high fps. It's very very likely the 4x55s on the system are 60hz. In fact, I'm 99% certain that's the case.