I wish it worked on Mac Pro 2013... It kinda does, but runs on D700 rather than on an external Vega 64. Is there a way to choose a GPU to test?
Mac Pro 2013, Intel Xeon 3.5GHz 6-core, 32GB ECC DDR, AMD FirePro D700
Sonnet Breakaway Box 550W, PowerColor Radeon Pro Vega 64
Again the GTX1080Ti humiliates AMD. This card must be a nightmare for AMD. How did they prevent mass suicide?
2018 15" MBP & 2015 13" MBP connected to RTX2080Ti GTX1080Ti GTX1080 Vega56 RX580 R9-290 GTX680
2018 15" MacBook Pro (RP560X) [8th,6C,H] + RX 5700 XT @ 32Gbps-TB3 (ASUS XG Station Pro) + Win10 & macOS 10.15.4 // Navi vs Radeon VII vs GTX 1080 Ti [build link]
Again the GTX1080Ti humiliates AMD. This card must be a nightmare for AMD. How did they prevent mass suicide?
simple: by having Apple drop NVidia 
Mac Pro 2013, Intel Xeon 3.5GHz 6-core, 32GB ECC DDR, AMD FirePro D700
Sonnet Breakaway Box 550W, PowerColor Radeon Pro Vega 64
i am very far behind for this discussion, but for a chance you'll read this. i just put my new external graphic card for a test, and it is working. (radeon rx vega 64 on sonnet breakaway box 650W - average of 4800). those of you who want to choose external GPUs. command i on the app (on mac) to get its info, and check 'prefer external GPU'.
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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MacPro3,1
Mac Pro (Early 2008)
EVGA GeForce GTX 680 Mac Edition
macOS Mojave 10.14.3
1070 MRays/sec average.
Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case
Not Metal-specific (maybe one day we'll get a MoltenVK Blender, no time soon though), but you guys may also want to check out Blender Benchmark for Mac and PC, which tests GPUs directly and with pretty rigorous scene cases.
Bring peace to your computing life: stop trying to understand Apple.
I'll update this at some point, as this is a very old version of my renderer now. Probably after 10.15 is out, as there are new features to use there (hopefully I can get high complexity scenes running at good quality).
And yes, if it's using the internal GPU, select the app icon in finder and press cmd-i to open the file info. Check the 'prefer external GPU' box.
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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The program does not work on Catalina, are you planning to do an update ?
It says it cannot be inspected for malicious software so no way.
Regards,
Jaime
Mac Mini 2018 i7 16 GB 512 GB SSD, Mac Book Pro 2016, HP Z31x, Sonnet Breakaway Box 550 W, Nitro+ RX5700 XT, KFA2 SNPR 1060 6GB eGPU,...
Pretty cool. I still can't post pictures so here are the results:
dGPU Vega 20:
Resolution 1280x720, 676.58 MRays/second average
eGPU Radeon 5700 XT:
Resolution 1280x720, 1204.80 MRays/second average
2019 15" MacBook Pro, Razer Core X Chroma, PowerColor Red Devil Radeon 5700 XT
Right click on it from Finder and select Open. Click the open anyways (or something like that) when the warning pops up.
Pretty much anything other than from Apple now gives this warning that it's not been inspected. It only happens the first time you start it.
2019 15" MacBook Pro, Razer Core X Chroma, PowerColor Red Devil Radeon 5700 XT