2018 Mac Mini [8th,6C,B]+ RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.7...
 
Notifications
Clear all

2018 Mac Mini [8th,6C,B]+ RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.7 & Win10 2004  

  RSS

Łukasz Łazarecki
(@lukasz_lazarecki)
New Member
Joined: 1 month ago
 
System specs:
2018 Mac Mini (2020) 8th Gen i7 3.2 Ghz, 32GB RAM, 512GB SSD
Windows 10 (2004 OS Build 19041.572)
 
eGPU hardware:
MSI Radeon Rx 5700 XT Gaming X 8G
0.5 Meter Thunderbolt 3 cable (bought at Apple retailer)
 
Installation steps:
 
macOS:
It just works, no special steps needed except right clicking on a given app, selecting Get Info and checking "Use external GPU" box (or whatever it's called).
 
Win 10:
I wanted to keep it as straightforward as possible, so nothing fancy. All of the below steps are done with monitor connected via USB-C to my Mini, unless noted differently.
1. With GPU disconnected I installed Win 10 (latest 64bit) with Bootcamp. Rebooted, downloaded updates, activated, rebooted again, etc.
2. I disable automatic updates at this point. I'm not going to update this Win 10 install ever Smile

3. After that I created a restore point.
4. Downloaded the most recent AMD drivers for Radeon RX 5700 XT (not the 50th anniversary edition ones, I have no idea what those are). I selected the "Auto-Detect and Install" package, since I had no idea which ones I needed Smile I did NOT use DDU to remove the Bootcamp AMD drivers.
5. Plugged in the eGPU and installed the drivers. It reported an error first time I tried it, so I rebooted and run the downloaded installer again. After it asked to reboot, I powered down the eGPU, rebooted, powered the eGPU back up when I saw the login screen, logged in and installation process continued automatically. And reported an error again right after it looked like it completed Smile so I assumed I can ignore that.
6. Now I rebooted, disconnected the USB-C and tried to use eGPU only. It didn't work. I checked in the device manager, Code 12 was displayed next to the AMD card. I this point I think I tried a couple more times with no success.
7. I finally decided to open device manager again, disable the Intel integrated graphics (double-click on the Intel card in device manager, select disable) and reboot with USB-C disconnected, using eGPU. And it worked Smile

8. Once everything was working fine, I created another restore point.
 
Comments:
It wasn't completely pain free with Windows, but once it started working it looks like things are fine. Didn't have a single crash, everything seems stable, performance seem OK.
 
Benchmarks:
 
macOS:
Unigine Heaven (preset extreme changed to 1080p)
image

Unigine Valley (preset extreme HD)

image

Win 10:

Unigine Heaven (preset extreme changed to 1080p)

Unigine Heaven Benchmark 4.0

FPS:
94.0
Score:
2368
Min FPS:
28.7
Max FPS:
177.2

System

Platform:
Windows NT 6.2 (build 9200) 64bit
CPU model:
Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz (3191MHz) x6
GPU model:
AMD Radeon RX 5700 XT 27.20.12029.1000 (4095MB) x1

Settings

Render:
Direct3D11
Mode:
1920x1080 8xAA fullscreen
Preset
Custom
Quality
Ultra
Tessellation:
Extreme
 
Unigine Valley (preset Extreme HD)
 

Unigine Valley Benchmark 1.0

FPS:
79.1
Score:
3308
Min FPS:
29.4
Max FPS:
177.8

System

Platform:
Windows 8 (build 9200) 64bit
CPU model:
Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz (3191MHz) x6
GPU model:
AMD Radeon RX 5700 XT 27.20.12029.1000 (4095MB) x1

Settings

Render:
Direct3D11
Mode:
1920x1080 8xAA fullscreen
Preset
Extreme HD

Unigine Superposition (Extreme 1080p, but for some reason it run at 4K)

image
This topic was modified 1 month ago
2018 Mac Mini [8th,6C,B]+ RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.7 & Win10 2004 [build link]  

Backstop5 liked
ReplyQuote