Is upgrading from a Ryzen 5 5600G to a 5800X3D worth €350 for 1440p ultrawide gaming?

A cheaper upgrade could be better value if you can find one locally or used. A Ryzen 5 5600X, Ryzen 7 5700X, or a compatible 5500X3D/5600X3D at a much lower price would avoid spending €350. Also, DDR4-3600 with decent timings might provide a small improvement, but it won’t come close to the benefit of replacing the 5600G in CPU-limited games.

€350 is a fairly steep price for an AM4 processor. The 5800X3D can be a great platform-final upgrade, but a 20–30% improvement in many situations may not justify paying that much unless you plan to keep the rest of the system for several more years. A less expensive Ryzen 7 5700X or 5800X would still be a meaningful step up from the 5600G, though they won’t match the gaming performance of the X3D chip.

The 5600G is weaker than a regular 5600X in gaming because it has less cache, so moving to an eight-core Ryzen 7—especially an X3D model—should be noticeable in CPU-bound titles. Before buying, check your actual GPU utilization and frame-time behavior in the games you play. If the GPU is already near full usage, upgrading the CPU will mostly improve consistency rather than produce a huge FPS increase.

The 5800X3D is the strongest gaming upgrade you can make without replacing the motherboard and moving to DDR5. Compared with the 5600G, it should improve CPU-limited frame rates and especially the 1% lows, making games feel smoother. Your cooler, memory capacity, motherboard, and power supply are all suitable for it.

It depends on the game and whether you’re GPU-limited. At 1440p ultrawide and high settings, the RX 7800 XT will often be the limiting component, so average FPS may not increase dramatically. The biggest benefit will show up in CPU-heavy games, busy scenes, high-refresh-rate gaming, and smoother frame times.