No, the 7800X3D is not designed for SolidWorks or AutoCAD.
No, the 7800X3D is not designed for SolidWorks or AutoCAD.
Not really sure about productivity, but I believe 3D chips perform better in games. Either way, they seem pretty similar in workstation situations since the specifications aren't that different.
It's a 12-core to 16-core setup on a 7950X3D (or 9950X alternatively). The 7950X3D performs decently, though it might lag slightly behind the 7800X3D in gaming when the cache isn't utilized or when both cores are active. This can be fixed using Process Lasso. Essentially, you're looking at a configuration of 7700X + 7800X3D.
That's what being the market leader means, especially when the best your competitor can do is create CPU's with an expiry date...