My current PC has an Intel i5-12600K, an RX 6800 XT, and 32GB of DDR4-3200 memory. I mainly use it like a console on a Sony 65-inch X950H at 4K and 60Hz. For the RPGs I play, I can usually adjust the settings and use FSR to maintain a steady 60 FPS.
My daughter's PC has an i7-8700, an RX 6700 XT, and 32GB of DDR4-2400 memory. She plays at 1440p, and that system can also deliver playable performance with some settings adjustments.
I'm considering moving my PC to a newer Sony 65-inch X90L, which supports up to 4K/120Hz, and upgrading the graphics card. I would give my RX 6800 XT to my daughter for better 1440p performance, then sell her RX 6700 XT to help fund my new card. This seems like a relatively simple way to improve both systems without building an entirely new PC while memory prices are so high.
How much would I realistically need to spend for a meaningful upgrade over the RX 6800 XT, and would that upgrade be worthwhile for 4K gaming in my situation? My Corsair case only supports graphics cards up to 300mm long, which limits my choices. I'm also considering moving the components into a larger case if that would open up better GPU options and make the overall upgrade more worthwhile.
4 Answers
The RX 9070 XT looks like one of the more sensible upgrades right now. After selling the RX 6700 XT, you might be looking at roughly $500 out of pocket, depending on the card’s price and your local used market. It should provide a noticeable improvement at 4K while also giving you newer features, better ray tracing, and longer driver support. Beyond that class of card, the price-to-performance value becomes much harder to justify.
For the case limitation, use a parts comparison site’s graphics-card filters and set the maximum card length to 300mm. There are RX 9070 XT models under that limit, so you may not need a new case at all. Only move everything to a larger case if the specific GPU you want is unavailable in a shorter design or if you also need better cooling and airflow.
At 4K, the upgrade makes more sense than it would at 1440p because the GPU is doing most of the work. A suitable RX 9070 XT can offer a meaningful performance increase, although the exact gain will vary by game and settings. I wouldn’t upgrade just for the possibility of 120 FPS in every RPG, but it could give you more headroom for higher settings and smoother performance.
I’d consider changing TVs even if you keep the RX 6800 XT for now. The newer display’s VRR support should make dips below 60 FPS feel much smoother than they do on the older X950H. That may improve the experience more immediately than spending heavily on a new GPU.

Related Questions
Lenovo Thinkpad Stuck In Update Loop Install FilterDriverU2_Reload