I'm looking to improve a PC that's about three years old, while staying on the AM4 platform and keeping the budget around $500 USD. It's mainly used for multiplayer games such as League of Legends, World of Warcraft, and Overwatch, but I'd also like better performance in demanding single-player games such as Black Myth: Wukong. I use it for browsing and video playback as well.
I'm comfortable replacing components or building a PC, but I'm less familiar with choosing upgrades for the best performance-per-dollar. My goal is a smooth 1440p experience at 100+ FPS where practical. I'm open to used parts, although recommendations should assume new-part pricing. I'm also in Australia, so cooling and component longevity matter. Storage upgrades can be ignored for now unless they would significantly improve gaming performance.
Current hardware:
- GPU: Gigabyte GeForce RTX 3060 Ti AORUS Master
- CPU: AMD Ryzen 9 3900XT
- Motherboard: Gigabyte B550 AORUS PRO AX
- Memory: 64GB DDR4-3600 CL18
- Storage: Crucial P1 1TB NVMe and Samsung 970 EVO 500GB NVMe
- Cooler: Corsair H100i RGB Platinum 240mm AIO
- Case: Fractal Design Meshify C
- PSU: Antec GSK850 V2 850W 80+ Gold, recently replaced
- Monitor: MSI 27-inch 1440p 280Hz OLED
Should I upgrade the CPU, graphics card, or both? I'd also appreciate advice on optimizing the current system if a major upgrade isn't worthwhile.
4 Answers
The best value may come from selling the 3900XT and 3060 Ti, then combining that money with the $500 budget. That could make a substantially faster GPU possible, while an affordable AM4 X3D chip handles the CPU side. A 100+ FPS target won’t be realistic in every demanding game, even at 1440p, so expect to use settings such as DLSS, frame generation, or reduced ray tracing when necessary.
An AM4 gaming upgrade would be an X3D processor, such as a 5800X3D if you can find one at a reasonable price. It can improve minimum FPS and consistency in games, especially multiplayer and simulation-heavy titles, but it won’t solve graphics limitations in visually demanding games. At current pricing, compare it carefully with cheaper X3D options or a good used deal before buying.
Before buying anything, check temperatures, GPU utilization, frame-time graphs, and whether your memory is running its 3600 MT/s profile. Enable the appropriate XMP/DOCP setting, keep chipset and graphics drivers current, and use DLSS or optimized settings in demanding games. If the GPU is near full usage, upgrade the GPU; if the GPU is underutilized while the CPU is limiting frame rates, then consider an X3D CPU instead.
This is already a capable system, so the graphics card is likely to provide the biggest improvement in demanding 1440p games. The 3900XT has plenty of cores and should be fine unless you’re specifically missing high frame rates in CPU-heavy games. With only $500, I’d either keep the system as-is or save longer for a noticeably stronger GPU rather than making a small side-grade.
I wouldn’t sell the motherboard and memory unless you’re ready to move to a new platform. The existing B550 board, 64GB of RAM, PSU, case, and cooler are all useful, so replacing the whole platform would spend a lot of the budget without directly improving graphics performance.