#Apple egpu full
If you aren't running a 3D accelerated app in full screen mode, the normal internal GPU will be the graphics device driving the app. However, there are still some things that need to be added to have full support. Using the RX 580 as intended works as expected and when connecting an external display, worked beautifully.
We connected it to a 2016 Skylake-based MacBook via Thunderbolt 3 and the eGPU powered on.
We connected the 2 power pins to the GTX 1080 ti and reassembled the enclosure. We noticed that the 350W power supply in the enclosure had a shrink-wrapped power connector. The GTX 1080 ti requires an 8-pin and a 6-pin connector. The enclosure has a single 8-pin power connector available to power the RX 580.
#Apple egpu drivers
NVIDIA released new macOS drivers for its latest Pascal-based GPUs such as the 1080 ti just this year, so we were hopeful to get the amazing GTX performance on the Mac.Īlthough fitting it into the enclosure went without a hitch, we had to "liberate" one of the power pins inside the enclosure to adequately power the GTX 1080 ti. It is widely considered the best consumer GPU for VR gaming (the GTX Titan Xp is slightly higher spec but is considered "prosumer" and considerably more expensive). We went with a top-of-the-line NVIDIA GTX 1080 ti.
#Apple egpu install
So the solution would be to install a more capable GPU into the eGPU enclosure, right? The RX 580 being on the lower end of the GPU VR performance spectrum will in many instances fall into this reprojection fallback scenario. The problem with this technology is that it introduces visual artifacts such as ghosting that can reduce the level of immersion of the VR application. It does this by doubling up the frames to the VR headset so that it appears to be running at 90 FPS. There are GPU technologies such as Valve's asynchronous reprojection that allow for a weaker GPU to "fake" 90 FPS but actually be running at only 45 FPS. Anything below will cause a sense of disconnect and make the VR user feel queasy. In VR applications, in order for a user to not feel motion sickness, it is imperative that the frames per second (FPS) of the application runs at 90 FPS. You can run VR applications on it, but in terms of frame rate, it's on the lower end of the performance charts. If you follow the GPU industry, you'd note that as far as VR goes, the RX 580 is a capable but not an awe-inspiring graphics card. Can you change the GPU to a more powerful one? Not Yet.
You can get more information about what's inside the box here. It also comes with a USB-C to USB-A adapter so that you can connect the HTC vie to your Mac. The eGPU dev kit comes with an AMD RX 580 with 8GB of ram and the enclosure has a single Thunderport 3 connection port. So with these things in mind, I tried to see what I could get away with with as little tweaking as possible, knowing that I could be completely wasting my time using the enclosure beyond the supported features outlined in Apple's release notes.
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