System specs
MacBook Pro (Four Thunderbolt 3 ports, with touch bar, mid 2020)
2.0 GHz Intel Core i5 (i5-1038NG7)
16 GB RAM
Intel Iris Plus Graphics
eGPU Hardware
Razer Core X Chroma
XFX AMD Radeon RX 5700 XT
Thunderbolt 3 cable (6 feet)
Dell 27" Gaming Monitor (S2719DGF)
OSX Guide
- Plug and play, works great on macOS Big Sur!
Windows Guide
- Leave the eGPU disconnected and use Boot Camp Assistant in macOS to install a fresh copy of Windows 10 (version 1903). I used this ISO: Win10_1903_V1_English_x64.iso
- After it is done installing, boot into Windows 10, get it all set up, and install the latest updates for Windows.
- Install Apple boot camp drivers.
- Turn off Link State Power Management in the Power Options. Turning this option off lets Windows 10 boot without needing to unplug/replug the Thunderbolt 3 during boot up!
- Downgrade pci.sys, see this thread.
- I copied the pci.sys from the Windows v1903 ISO. Using DiskGenius, I booted into Windows PE mode, and was able to use the command line to run this command:
- (Shoutout to aream_lakr's build)
- Now power on the MacBook Pro with the eGPU + external monitor attached.
- Windows should recognize that something new is plugged in and the external monitor should show the desktop with wrong display resolution.
- Download and install the latest AMD Radeon drivers for the graphics card.
- Everything should now be working great!
Hey, I plan to build exactly the same setup and would like to know what fps I can expect in bootcamp gaming. And thx for tutorial.
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
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I remember when windows Bootcamp did not work with MacBook 2020. Does it work well now?
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
.
Would love to see some game benchmarks too, that's a pretty straight forward instal method too, Congrats!
2017 13" MacBook Pro Touch Bar
GTX1060 + AKiTiO Thunder3 + Win10
GTX1070 + Sonnet Breakaway Box + Win10
GTX1070 + Razer Core V1 + Win10
Vega 56 + Razer Core V1 + macOS + Win10
Vega 56 + Mantiz Venus + macOS + W10
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LG 5K Ultrafine flickering issue fix
2018 Mac Mini [8th,6C,B] + RX 580 @ 32Gbps-TB3 (AKiTiO Node Lite) + Win10 20H2 [build link]
No EFI Boot loader from the main tutorial on this site?
Mac Mini 2018 + Razer Core X + AMD Radeon RX 5700 XT + OSX Big Sur + Bootcamp Windows 10 20H2 v2 build 19042.631
@ana-satsujin, Hi I guess you mean the Apple M1 chip 2020 MacBook Pro. Sure it won't work with BootCamp.
But what we're discussing here is about the Intel chip 2020 MacBook Pro. It'll work and works fine with BootCamp. 
2020 MacBook Pro 13" (4 Thunderbolts)
2.3 GHz Intel Core i7, 32GB RAM
Razer Core X, XFX 5700 XT 8GB