I'm currently running a Ryzen 3700X and recently upgraded my GPU from a 1080ti to a 7800XT after snagging a good deal. I initially thought about getting a 7800X3D, but I've just realized my existing 32GB DDR4 RAM isn't compatible with it—going for DDR5 would push me over budget. I'm now looking for a good CPU upgrade that doesn't require me to change my RAM. Would the 9700X or 7700X be good options? I want to future-proof my setup until my GPU becomes the bottleneck. I game at 1440p, and aside from gaming, I do some web development but no video editing. I also planned to buy a new motherboard, but the RAM costs have made me rethink my CPU choice.
5 Answers
The cost of switching to AM5 is hefty enough that you might as well save a bit and go for the 7800X3D. The 9700X is only slightly cheaper, and if you want to stay on AM4, grabbing a 5800X could work, but I’m not sure how much better it is than what you have now. In that case, maybe consider holding out for AM6 instead.
Just a heads-up, both the 9700X and 7700X need DDR5 and a new motherboard. I’d instead recommend a 5600X, 5700X, or 5800X for a more affordable but significant upgrade. If you're going for peak performance on AM4, stick with the 5700X3D or 5800X3D, but be aware they’re pricier now. Maybe it’s better to think about going AM5 and sell off your old parts instead.
Every Ryzen 7000 or 9000 series CPU needs DDR5 and a new motherboard! If you want to keep using your DDR4 RAM, the best options are the Ryzen 5000 series CPUs. So definitely look there for a solid upgrade!
Consider upgrading to a 5700X3D! It will give you top-tier performance on the AM4 platform without the cost of DDR5 and an AM5 motherboard. It's like the best way to maximize your existing setup without going overboard on expenses.
Keep in mind that no AM5 CPU will work with your DDR4 RAM, so you'd need to change the motherboard as well. Like others mentioned, looking at the 5700X3D would be a good shot if you want to stick to your current RAM setup.

I totally agree with you! The 5700X3D or the 5800X3D are solid picks. It's smart to save money on the mobo and RAM while keeping your current parts relevant for a longer time.