Is the Dell Precision 7680 good for CAD and 3D work?

Yes. It is a mobile workstation with a dedicated graphics card, 32 GB of RAM and a 13th-gen HX-series processor, which is the class of hardware CAD and 3D apps expect. Check that your software's ISV certification covers this model.

Is the 4K OLED touchscreen worth it over the standard display?

The OLED gives deeper blacks and wider color coverage, which helps photo and video work. It also uses more power, so battery life drops compared with LCD configurations.

Can I upgrade the RAM and storage later?

The Precision 7680 is a workstation chassis with serviceable memory and storage slots, so upgrades are possible. Confirm the exact slot layout for your configuration before buying parts.

How does it compare with the HP ZBook Fury or ThinkPad P16?

All three are 16-inch workstations with ISV-certified parts and upgradeable internals. The Precision 7680's edge is the 4K OLED touch option; the rivals are often chosen for keyboard feel or service options.

Is the Core i5-13600HX enough for professional work?

It handles everyday CAD, coding and office work well. For sustained rendering or simulation, the higher-core i7 and i9 options in the line will finish jobs faster.