2019 15" Macbook Pro (Vega20) [9th,8C,H] + GTX 1070 @ 32Gbps-TB3 (Razer Core X) ...
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2019 15" MacBook Pro (Vega20) [9th,8C,H] + GTX 1070 @ 32Gbps-TB3 (Razer Core X) + Win10  


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Joined: 1 month ago

System specs

2019 15" Macbook Pro (Vega 20) [9th,8C,H] + Gigabyte GTX 1070 @ 32Gbps-TB3 (Razer Core X) + Win10 (1909)


Hardware pictures 

Coming shortly


Installation steps

Setting up BOOTCAMP

1. Install BOOTCAMP

2. Run the DDU software from bootcampdrivers.com and reinstall the current version of Red Radeon Drivers

3. Download the Drivers for GTX 1070

4. Plug eGPU in, wait for windows to create the Basic VGA Adaptor in Device Manager

5. Install the GTX 1070 Drivers

6. Disable the Vega 20 Graphics in Device Manager

7. Reboot Windows with the steps below

Setting up eGPU

1. Referring to the picture. I plugged in the Mouse into the lower left port. The Keyboard into the lower right port. External USB Drive (Game location) to the upper right port.

2. I had the Razer Core X eGPU plugged into a monitor with HDMI and loosely plugged into the upper left port on the computer.

3. I booted into Windows and at the spinning wheel I inserted the eGPU cable.

4. I was able to run ultra settings at 1080p on the monitor with the lid open or closed



3DMark 1080p

Vega 20 (27” Thunderbolt Display) 2836 - GPUTest1 17FPS - GPUTest2 14FPS

GTX 1070 (Stock) (HDMI) 4222 - GPUTest1 27FPS - GPUTest2 25FPS (Mirrored Display)

GTX 1070 (Stock) (HDMI) 5702 - GPUTest1 36FPS - GPUTest2 32FPS (Extended Display)


Geekbench 5 is showing an improvement in Open CL up from 24K to 46K


F1 2019

Vega 20 - 45-60FPS Medium/High

GTX 1070 - 85-110FPS Ultra



Apple 27" Thunderbolt Display

IMG 2515

Ok this one took a little bit longer for me to get working then I would of liked but it was actually much simpler then I thought it would be. First. There is definitely significant loss of FPS using the computer to process the video over thunderbolt but with the 1070 it was still completely usable for gaming. Second. I found the Thunderbolt Display to be dimmer then using a regular HDMI connection (im going to test the games I play again later with the Vega 20 and see if that is true with that.  It might just be that ive been on a brighter screen for the last week and need to adjust)


1. If you followed the steps that I put out above you will need to start the windows with nothing plugged in and go into device manager and enable the Vega 20 (you probably didn't need to disable it before but it was easier for me to do that before in order to not have to add all my games to high performance in the control panel), then turn off computer.

2. Plug your mouse, keyboard, External Game SSD (im running a Samsung T5) into the thunderbolt display.

3. plug the Thunderbolt Display into the right side (top) thunderbolt port (obviously with the TB2-TB3 adaptor)

4. have the top left TB port ready to go with the eGPU cable.

5. boot to windows, plug in the eGPU at the spinning dots.

6. change the resolution of the display to 1920 x 1080 (you have to use mirroring... I couldn't get extend to work)

7. in windows open the graphic settings and ensure the games you want to play as set to high performance on the eGPU

8. Start a game


Benchmarks (w/ Thunderbolt Display)


F1 2019

GTX 1070 - 55-70FPS Ultra


I will add some more benchmarks with the display later but at least that gives you an idea of the performance loss

IMG 2427

GPU1 is the Vega 20

GPU2 is the eGPU GTX 1070




I originally tried to get all this working with an MSI Radeon RX 580 so I could run windows and Mac eGPU but it turned out to be a total PITA. 

This topic was modified 7 days ago
2019 15" MacBook Pro (Vega20) [9th,8C,H] + GTX 1070 @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]