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Author Topic: use an external GPU with your Mac  (Read 52 times)

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Offline chrisNova777

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use an external GPU with your Mac
« on: November 05, 2018, 11:28:32 PM »
https://support.apple.com/en-ca/HT208544
Use an external graphics processor with your Mac
Your Thunderbolt 3-equipped Mac running macOS High Sierra 10.13.4 or later can access additional graphics performance by connecting to an external graphics processor (also known as an eGPU).


(shown in image using an RX 570 AMD Radeon)
https://www.amd.com/en/products/graphics/radeon-rx-570



Quote
An eGPU can give your Mac additional graphics performance for professional apps, 3D gaming, VR content creation, and more.
eGPUs are supported on any Thunderbolt 3-equipped Mac:
MacBook Pro (2016) and newer1
iMac (2017) and newer
iMac Pro
Your Mac must also have macOS High Sierra 10.13.4 or later installed. Learn how to update the software on your Mac.
Using menu bar item to disconnect eGPU
An eGPU lets you do all this on your Mac:
Accelerate apps that use Metal, OpenGL, and OpenCL
Connect additional external monitors and displays
Use virtual reality headsets plugged into the eGPU
Charge your MacBook Pro while using the eGPU
Use an eGPU with your MacBook Pro while its built-in display is closed
Connect an eGPU while a user is logged in
Connect more than one eGPU using the multiple Thunderbolt 3 (USB-C) ports on your Mac2
Use the menu bar item eGPU menu bar icon to safely disconnect the eGPU
View the activity levels of built-in and external GPUs (Open Activity Monitor, then choose Window > GPU History.)

eGPU support in apps
eGPU support in macOS High Sierra 10.13.4 and later is designed to accelerate Metal, OpenGL, and OpenCL apps that benefit from a powerful eGPU. Not all apps support eGPU acceleration; check with the app's developer to learn more.4
In general, an eGPU can accelerate performance in these types of apps:
Pro apps designed to utilize multiple GPUs
3D games, when an external monitor is attached directly to the eGPU
VR apps, when the VR headset is attached directly to the eGPU
Pro apps and 3D games that accelerate the built-in display of an iMac or MacBook Pro (This capability must be enabled by the app's developer.)
You can configure applications to use an eGPU with one of the following methods.
Use the "Prefer external GPU" option
Starting with macOS Mojave 10.14, you can turn on "Prefer external GPU" in a specific app's Get Info panel in the Finder. This option lets the eGPU accelerate apps on any display connected to the Mac — including displays built in to iMac, iMac Pro, and MacBook Pro:
Quit the app if it's open.
Select the app in the Finder. Most apps are in your Applications folder. If you open the app from an alias or launcher, Control-click the app's icon and choose Show Original from the pop-up menu. Then select the original app.
Press Command-I to show the app's info window.
Select the checkbox next to Prefer external GPU.
Open the app to use it with the eGPU.
You won't see this option if an eGPU isn't connected, if your Mac isn't running macOS Mojave, or if the app self-manages its GPU selection. Some apps directly choose which graphics processors are used and will ignore the Prefer external GPU checkbox.
Set an external eGPU-connected display as the primary display
If you have an external display connected to your eGPU, you can choose it as the primary display for all apps. Since apps default to the GPU associated with the primary display, this option works with a variety of apps:
Quit any open apps that you want the eGPU to accelerate on the primary display.
Choose Apple () menu > System Preferences. Select Displays, then select the Arrangement tab.
Drag the white menu bar to the box that represents the display that's attached to the eGPU.
Open the apps that you want to use with the eGPU.
If you disconnect the eGPU, your Mac defaults back to the internal graphics processors that drives the built-in display. When the eGPU is re-attached, it automatically sets the external display as the primary display.

Supported eGPU configurations
It's important to use an eGPU with a recommended graphics card and Thunderbolt 3 chassis. And if you're using a MacBook Pro, the eGPU's Thunderbolt 3 chassis needs to provide sufficient power to run the graphics card while charging the computer. Check with the maker of the chassis to find out how much power it provides, and make sure that it's enough to charge your connected Mac notebook.
Recommended graphics cards, along with chassis that can power them sufficiently, are listed below.
Thunderbolt 3 all-in-one eGPU products
These products contain a powerful built-in GPU and supply sufficient power to charge your MacBook Pro.
Recommended Thunderbolt 3 all-in-one eGPUs:
Blackmagic eGPU3
Sonnet Radeon RX 570 eGFX Breakaway Puck
AMD Radeon RX 470, RX 480, RX 570, RX 580, and Radeon Pro WX 7100
These graphics cards are based on the AMD Polaris architecture. Recommended graphics cards include the Sapphire Pulse series and the AMD WX series.
Recommended Thunderbolt 3 chassis for these graphics cards:
OWC Mercury Helios FX3
PowerColor Devil Box
Sapphire Gear Box
Sonnet eGFX Breakaway Box 350W
Sonnet eGFX Breakaway Box 550W3
Sonnet eGFX Breakaway Box 650W3
AMD Radeon RX Vega 56
These graphics cards are based on the AMD Vega 56 architecture. Recommended graphics cards include the Sapphire Vega 56 and XFX Vega 56.
Recommended Thunderbolt 3 chassis for these graphics cards:
OWC Mercury Helios FX3
PowerColor Devil Box
Sonnet eGFX Breakaway Box 550W3
Sonnet eGFX Breakaway Box 650W3
AMD Radeon RX Vega 64, Vega Frontier Edition Air, and Radeon Pro WX 9100
These graphics cards are based on the AMD Vega 64 architecture. Recommended graphics cards include the Sapphire Vega 64, XFX Vega 64, AMD Frontier Edition air-cooled, and AMD Radeon Pro WX 9100.
Recommended Thunderbolt 3 chassis for these graphics cards:
 Sonnet eGFX Breakaway Box 650W3

Learn more
If you have questions about Thunderbolt 3 chassis or graphics cards, or about third-party app support and compatibility, contact the hardware or software provider.
Software developers can learn more about programming their apps to take advantage of macOS eGPU support.
 
1. If you're using a 13-inch MacBook Pro from 2016 or 2017, always plug eGPUs and other high-performance devices into the left-hand ports for maximum data throughput.
2. For optimal performance, eGPUs should be connected directly to your Mac and not daisy-chained through another Thunderbolt device or hub.
3. These chassis provide at least 85 watts of charging power, making them ideal for use with 15-inch MacBook Pro models.
4. macOS High Sierra 10.13.4 and later don't support eGPUs in Windows using Boot Camp or when your Mac is in macOS Recovery or installing system updates.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners.
Published Date: September 24, 2018