I am a graphic designer using the osx system. I have always liked and learned how to use Houdini, but the graphics card of the MacBook pro 2014 I am using is not supported by Houdini.
so I plan to buy a new mac, but I’m not sure about the mac pro 2019 's graphics card Whether supported by Houdini, I hope someone can tell me, thank you!

I have the following two options:

options 1:Mac Pro 2019
+OSx catalina 10.15.7
+3.5GHz 8‑core Intel Xeon
+32GB DDR4 ECC memory
+Radeon Pro W5500X with 8GB of GDDR6 memory

—-

options 2:MacBook Pro 16inch
+2.4GHz 8‑core 9th‑generation Intel Core i9 processor,
+64GB 2666MHz DDR4 memory
+AMD Radeon Pro 5500M with 8GB of GDDR6 memory

Between the two choices, you're better off with the desktop option. Houdini runs fine on my 5700xt, so I would assume that other AMD GPU's of the same generation would also behave fine in Houdini. The benefit of a desktop is that you can always update the GPU down the line, where with the laptop you're stuck.