10 year old is still DDR4, and ddr4 is still plenty fine for gaming workloads. AM4 still has some solid options out there, the 5800x3d has 3d vcache and would be an insane upgrade over any… quad core? 6th gen intel? Not sure what the AMD at the time was. 14th gen intel supports both ddr4/5 if you wanted the ram upgrade potential, but it… well, I remember it being pretty sketchy perf/degradation wise for a while, so maybe don’t go with them. I understand the sucky feeling that you’re sidegrading instead of investing in a new beastly rig for a reasonable price- believe me I’ve been in the same boat since all this GPU bullshit started. I got lucky choosing to upgrade to ddr5 years ago, but I elected not to get a GPU out of a lack of clairvoyance :(. Still though- I upgraded from an i7 6700k in 2023. The 5800x3d released a year prior to the CPU I picked up. Granted I went to zen 5, but holy shit I didn’t not realize how fucking old that 6700k was haha. The 3dvcache on AMD CPUs is a crazy, crazy boost- in addition to the fact that modern CPUs are already bounds and leagues ahead of 2016, and I would go to bet that even if it’s technically a sidegrade, you probably wouldn’t feel too horrible about the money spent. (I really want to say that you’d feel pretty satisfied with it it, but I can’t discount that I also jumped up to a higher tier zen 5 cpu, and don’t have explicit experience with the 5800x or other AM4 stuff. ymmv!)