I'm building a roughly €2,000 tower for learning Blender, ZBrush and Maya, with some gaming on the side. The build has a Ryzen 9 7900X and an RTX 4080 SUPER or a 5070 Ti, depending on price.
I bought 64GB of DDR5-5600 CL40 for €650 and can still return it. Other 64GB kits I found cost considerably more. Would you keep it, wait for a faster kit, or put the money elsewhere?
I'd keep it if you know you want 64GB. DDR5-6000 CL30 is faster on paper, but the difference won't necessarily be large in your actual work, and paying a lot more for tighter timings could be hard to justify.
I'd only swap it if returning the kit is easy and you can find a better one for a small premium. Check prices before making that call rather than counting on a deal appearing.
The bigger question is whether you need 64GB yet. You can learn Blender with 32GB, although more complex scenes can eventually push past that. If you're trying to bring the build cost down, returning the kit and choosing 32GB is a more meaningful saving than chasing slightly faster 64GB RAM.
If you expect to work on large projects, keeping the extra capacity gives you more room to grow. €650 is still a lot of money, even if the alternatives you found are pricier.
Since gaming is secondary, compare workstation benchmarks before settling on the 7900X. An Intel alternative could be worth considering for productivity, but compare the total platform cost and power use too, not just the processor price.
There's also room to look at less expensive cases, SSDs and power supplies if the tower is over budget. Just make sure the replacements still fit the build and meet its requirements.
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