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Most operations on CAD and solid object modeling software are single-threaded, so focus on single core performance stats.. Even my largest models in Inventor don't get my 4080 Super spooled up.
The Ultra 7 and the RTX 5060 shouldn't have any trouble with those workloads. Solidworks still have the Nvidia RTX 1000 Ada Generation with 6GB GDDR6 and the Nvidia T500 with 4GB GDDR5 as supported cards.
https://www.solidworks.com/support/hardware-certification/
You should ask this in a CAD dedicated subgroup. I've been running high-end CAD software (I-DEAS, UG NX, Solidworks) on low to midrange PCs since 2000, and never had any issues. I don't know of any CAD system that supports the high-end features of the graphics cards you specify. There are some advanced rendering packages that might, but those cards aren't necessary. You might just get your pretty picture faster.
If you're going to be running FEA or simulations, just pack as much RAM as you can. 32Gb minimum.