I built my first gaming PC last year and it has been running well, but I have about $600 available for upgrades. I want to spend it where it will make the biggest noticeable difference rather than replacing parts unnecessarily. The system has a Ryzen 9 5900X, an RX 6650 XT 8GB, an ASUS B550 motherboard, 32GB of DDR4-3200 memory, a 2TB PCIe 4.0 NVMe SSD, an 850W power supply, and a 1080p 144Hz monitor. My impression is that the processor is still capable, while the graphics card may be limiting gaming performance. What upgrade path would make the most sense?
4 Answers
A reasonable priority list would be GPU first, monitor second, and CPU third. There’s little reason to replace the motherboard, RAM, SSD, power supply, or cooler right now. You could also simply keep the money until a particular game exposes a real performance problem.
Before buying anything, ask whether there’s a game or application you actually want to run better. Your current system is already functional, so upgrading just because newer parts exist may not be worthwhile. If you do want a noticeable gaming improvement, spend the money on the GPU rather than changing the CPU, memory, storage, or motherboard.
The 5900X is definitely not entry-level. It’s getting older, but it remains very capable, especially outside of extremely high-refresh competitive gaming. The RX 6650 XT is the weaker part of this build, so a GPU upgrade should come well before considering a platform change.
A stronger GPU may make your 1080p monitor the next limitation. If your budget includes money from selling the old card, you could potentially pair a new GPU with a 1440p 165Hz monitor. Otherwise, upgrade the graphics card first and replace the display later when you can afford it.

If you’re happy with 1080p and mainly play lighter or competitive games, there’s no need to replace the monitor immediately. A new display only makes sense if you want sharper visuals or more screen space.