- For certain things (such as 3Ds Max heavy use and a plethora of other 3d softwares) Windows have always offered better performance, period;
And regarding the AMD vs nVidia greatest forum war of our time you might want to investigate why people keep putting nVidia Gpus in their MacPros 5.1 rather than AMDs. You should really be wondering why they need power saving that much!
"prosumers/professionals will be fine with most of the specs/options, but the top specs don't fit the category of really demanding users, and these users are those that would have loved to have something more (like the 32Gbs of RAM) that others couldn't care less (those who are fine with 16) but for them are crucial."
I started as a kid with Povray+Moray, used 3d Studio R4 DOS by Kinetix, used Alias PowerAnimator and Alias|Wavefront Maya 1.0 by SGI, Softimage|3D when it was owned by Microsoft, etc.
As you can see I have a long and old history of 3D Software usage, and most time it was at a professional "paid" level, so let me counter a bit.
Windows does not offer the best performance anymore, except for 3DStudioMax, because it exist only for Windows.
Big Studios like ILM,Pixar,etc. run a lot of different operating systems, but the key ones run "Linux" with Maya.
For 3D content creation, yes Nvidia was always #1, but not because of it's better hardware, because of its better driver support for Quadro Cards.
Remember: GeForce are Gaming Cards and this means, No overlay planes support, No quad buffered stereo, no hardware accelerated points and lines, No clip regions.
And yes often people keep choosing Nvidia, because historically they are used to choose it.
These days are more or less over, AMD hardware just works now, too.
Most 3D Software Packages work equally good with AMD.
Renderers like Indigo,LuxRender supports Cuda and OpenCL equally good.
I will use the MacBook Pro also for GPU rendering, and I'm looking forward to use it. 16GB RAM+4GB GFXRAM will suit my mobile needs nicely for many many tasks. Heavy duty stuff I simply previs on the 128GBRAM XEON machine near me.
Anyway, 32GB won't make a huge difference. And the ones who hopes to have a single Laptop System to master all their "professional" situations, are simply doing it wrong. Those Vfx,3D,Animators,Graders,Editors "prosumers and professionals" should better buy a decent workstation with plenty of RAM, certified hardware and drivers, decently calibrated displays and stop moaning like kids. There is absolutely no reason to be upset or sad and moan about the 16GB. This is just all based on a wrong point of view, which in my opinion just reflects their unprofessionalism.
To support AMD a bit:
https://blenderartists.org/forum/showthread.php?361113-Mr-Snippy&p=2807116&viewfull=1#post2807116
https://www.phoronix.com/scan.php?page=news_item&px=Indigo-4-Beta-Graphics-Over-CL
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