I'm looking to upgrade my PC, which currently has a 2600X CPU and a 2070 GPU. I want to eventually upgrade my GPU to a 5070Ti or Super, but I'm focused on the CPU upgrade first. I'm seeing the 5800X priced at $161 and the 5700X3D at $229. I'm primarily gaming on a UW 3440x1440 monitor, but I also do some light work. Given the significant price difference, is the performance gain from the 5700X3D worth it? I found a new 5700X3D online, but I'm concerned about the warranty. The 5800X is available on Amazon, making it a safer bet. I'm hoping my upgrade will last around 5 years until I can jump to the AM5 platform.
5 Answers
The longevity of the AM4 platform is definitely a concern. Prices for AM4 CPUs are climbing, so while $229 seems steep now, it might actually be a good investment. The 5700X3D has better cache management, which could pay off in the long run.
Honestly, either CPU is a solid choice, but with your setup, the 5700X3D might not show a huge difference at that resolution. Most of your performance bottleneck will likely come from the GPU, especially with the games you're playing.
True, but the 5070Ti should handle that resolution pretty well, right?
If you plan to stick with AM4 for a few years, I'd say go for the 5700X3D. It’ll likely age better thanks to the extra cache, which helps future-proof your rig. You'll notice the difference over time as games become more demanding.
That's what I’m worried about—will the extra cost be justified in real-world use?
Check out some benchmarks. In my country, I can get the 5700X for around $70, while the 5700X3D is more than $240. There’s only a slight difference in performance at 1440p, so it’s hard to justify that price gap for me.
Exactly, that’s my concern too! Not sure if I can justify that extra $60 at this resolution.
If you're primarily gaming at 1440p, the 5800X is a powerful CPU that can reach up to 4.9 GHz. Many people underestimate its performance. Plus, it’s cheaper, which is a win if you're looking to save some cash.

Yeah, but what if I can’t sell my old components easily? I might just manage to get $150 tops for it.