==UPDATE== November 27, 2017
I contacted Adobe about that issue and they told me " We apologize but it is a known issue going on with the NVIDIA cards and Adobe applications and no fix for that till now and might be fixed in future updates".
Hi,
Since I upgraded my MacBook to High Sierra and upgraded my Adobe CC to 2018 and my AE is driving me crazy.
My graphics card is Nvidia Geforce 750M. First CUDA 9 was not showing in the GPU preferences page in AE and it was only showing Open CL, Metal and Software only , I contacted Adobe and unfortunately they let me download CUDA 8 and they told me that this is the supported version right now. That was wrong though! and it made my MacBook so laggy and I got kernel panic couple times while working on projects.
-In case you had the same problem too- I figured out that if you are running the new MacOS you have to download "Nvidia Driver Manager" and use the driver that Nvidia developed rather than the driver that Apple is offering, and then download CUDA 9 and everything should work fine!
That made my AE more stable and more responsive, specially while working with chroma and Keylight, but still AE is slower than usual when RAM preview videos.
I went to my project preferences page and I was shocked when I figured out that CUDA is not on the list of the video renderers while it's showing in the GPU information in the preferences panel!
I tried everything you would imagine and nothing worked for me. I decided to install Windows on my MacBook and try and no surprise CUDA was there in the list and AE on Windows is way faster than AE on MacOS's RAM preview! I also noticed that the Shared Model in the GPU preferences panel on the MacOS is showing "-" while on Windows it's "4.0 or later".
Please find attached some pictures showing my MacBook specs and some comparisons between MacOS and Windows running AE.
Hope you guys can find a solution and help me fixing this issue!
Cheers!
Ahmed