Bootcamp Internal Display acceleration
I have a 21 inches 2015 iMac with macOS 10.13.6 and Windows 10 1803 Bootcamp.
I use a Akitio Thunderbolt2 with a EVGA GTX 1060 6GB
I have fully setup my egpu on mac, it’s fully working on infernal display, I ran Unigine Heaven benchmark, in 4K Ultra i had approx 50fps constant.
But on W10 it’s significantly different... I have just plugged my egpu and installed GeForce drivers then the egpu was detected in the new graphic settings tab so i set all my games and benchmark apps to use the 1060 instead of Intel Iris pro 6200 but the same benchmark had huuuge troubles, i was running full screen windowed (so 4k again i guess) in high and i was around 20fps constant instead of 50 in ultra but the benchmark was on the nvidia cuz in top right corner it displayed my nvidia’s temperature and clock speed. Do you have any idea why i have such losses on bootcamp?
Thunderbolt 2 can only push back 20-30 fps when using an internal display at 4k - doesn't matter if you are gaming or not. The 1060 is inadequate for using an internal display at anything higher than 1080p for 60fps. The highest I can get in a game like Fortnite is 1152p 60fps on High/Ultra settings (Bootcamp), but I'm using a 1070. At anything higher than 1440p, you are going to lose FPS just transmitting the data back from the eGPU to the computer.
Run Google Chrome in Bootcamp using the eGPU (set it in Windows Graphics settings), go to the UFO frame rate test page, and you'll see that you will drop frames if you run at a resolution above 1440p. Switch it back to the default graphics processor and you'll see you hit 60fps on the UFO test page.
ohhhh okay thx a lot (and btw i did my bench again and realised a misred on macOS and in fact i get the same results) and i usually only play 1152p so i guess i’ll be fine. No matter what i plan on buying a new screen for christmas so i guess i won’t have those problem anymore.
Good stuff. I highly recommend going with a G-Sync display to deal with frame rate fluctuations. An external monitor will help tremendously, when I tested my iMac with an external display I was able to push 1440p with 60+fps in Fortnite.