eGPU isn't used 100% - why?  


Active Member
Joined: 1 year ago

I switched from a 2015 Macbook Pro (15'') to a 2018 Mac Mini. Difference: MacOS 10.14.5 and MacOS 10.15 (currently 10.15.3).

The Asus XG Station with a Asus Vega 56 is connected to the Mac Mini (no other device is connected to the same pair of lanes).

I use Capture One and need the eGPU especially during exporting the pictures. With the Macbook Pro (I didn't upgrade it to 10.15, because I sold it) I got 100% eGPU Usage, with the Mac Mini approx. max 60%.

Do you know why the usage isn't 100%? eGPU setup and Capture One Software is exactly the same. I tried using the HDMI connection and directly from the eGPU, it doesn't make a difference. Whats pretty weird: my HP 830 G5 (1 x Thunderbolt with 2 Lanes) is rendering the pictures (with the eGPU hocked up) in the same time (much weaker CPU, less RAM). 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts

Trusted Member
Joined: 3 months ago


I would refer to capture one page for troubleshooting

Mac Mini 2018 3.2 Ghz 6 cores
Razer Core X enclosure with Sapphire Vega 64 Nitro
Benq PD2720U