worrasf

Hi again James. After doing some more research I have found that Activity Monitor can be configured to show real time GPU usage (GPU history). Using this neat tool it is apparent that in order for Affinity photo to use the eGPU it does have to have "prefer external GPU" ticked. I have found that if it is left blank then Activity Monitor shows no activity from the external GPU and all from the internal! Checking the box activates the eGPU and after so doing Activity Monitor shows full use of the eGPU and partial use of the iGPU. I tested this using the adjustment sliders and liquify on the same image. Regards Steve

TBH so far just snappier exports, RAW development and adjustments. I’ve only had the eGPU 2 days so not done a huge amount on Affinity yet. I’ve not timed any differences but it certainly feels faster in use. By contrast I’ve not noticed any difference when using the Nik (DxO) plug-ins with Affinity. However, DxO photolab performance is much improved with significantly faster adjustments and exports. The irony is I actually bought the eGPU to improve the performance of Topaz Gigapixel AI (it was suggested by one of the Topaz CS guys I could expect about a 30% reduction in rendering times but (and I did time this) it’s actually only about 5%. Hope this helps steve

Thanks James - exactly the info I needed regards steve

I just bought a Blackmagic eGPU which is working very nicely with Affinity Photo 1.7.2 and other photo apps I'm using. I note that in the Performance settings Affinity shows it is using both the eGPU and the internal GPU which I expected from the release notes. My question is that as Affinity is designed to work with eGPU's and multiple GPU's do I need to set the preferences in the "Get Info" section of the app to "prefer external GPU" or leave it blank ? I note that if I check or uncheck this box Affinity still shows it is using both GPU's so I assume I don't need to but would appreciate any definitive answer. Thanks Steve

Yes. In my eagerness to upgrade I went and purchased a new copy of 1.7 Doh!

Me to. Just requested a refund and reverting to V1.6 While the NiK work as a standalones my workflow uses the plugins and it's too much faff to keep swapping in and out of AP.