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Gamers Nexus - AMD Ryzen 7 7800X3D CPU Review & Benchmarks

take a look at the differences and decide whether it's worth it for you.

Well, the 7800X3D is currently the most powerful CPU for gaming! (Unless you have a game that can utilise a lot of cores, which is rarely the case)
It's definitely worth making the switch. Of course, your old 3070 will be a bottleneck in the system, but you say you'll fix that next year. So it's all good!
Have a look at some good reviews of the 7800X3D, there are always gaming benchmarks in comparison with older CPUs. You'll see the differences very clearly.

Dude, that's really subjective...🤣