The short answer is no. While RTX cards can handle 4K gaming, they are unnecessary for everyone. GTX cards can still handle 4K gaming, albeit at lower frame rates and with some graphical compromises. However, an RTX card is the way to go if you want the best gaming experience in 4K. They offer significantly better performance than GTX cards, and their ray tracing and DLSS technology can help improve your games' graphical fidelity. So, if you’re looking to game in 4K, an RTX card is the best way. But a GTX card will still get the job done if you're on a tighter budget.