What should I upgrade next after moving to a Ryzen 7 5800X3D and RX 9070 XT?

The most practical upgrade would be more SSD capacity. A 1TB drive can fill surprisingly quickly once modern games are installed, even if you only keep a few titles at a time. A good 2TB NVMe drive would give you more breathing room, but it won’t improve frame rates.

For gaming at 1440p, this is already a very strong system. The 5800X3D and RX 9070 XT should work well together, and 64GB of RAM is more than enough for your current games. I wouldn’t move to DDR5 or replace the platform just for future-proofing yet; wait until you actually run into a performance limit.

The exact PC release timing for GTA 6 is uncertain, so buying parts specifically for it is mostly guesswork. Your current hardware should handle existing 1440p games very well, and it makes more sense to wait for official system requirements and real benchmarks before changing anything major.

The main component I’d examine closely is the power supply. A 750W unit may be sufficient on paper, but the TR2 S is an older budget model and quality matters with a powerful modern GPU. If you replace anything for reliability, choose a reputable modern 750–850W unit with an appropriate efficiency rating and protections.

I’d hold off on a major upgrade for now. Moving to a newer CPU platform would mean replacing the motherboard and memory, while the gaming benefit may be small compared with what you already have. Check actual CPU and GPU usage in the games you play, then upgrade only when one component is consistently limiting performance.