System specs
MacBook Pro (Retina, 13-inch, Late 2013)
2.4 GHz Dual-Core Intel Core i5
4 GB 1600 MHz DDR3
Radeon RX 5700 XT 8 GB
Crucial 1TB SSD NVMExpress @ x4 link width
eGPU hardware
Razer Core X -- bone stock
Apple TB3 to TB2 Adapter
Apple TB2 Cable
Hardware pictures
The card in question:
Did literally nothing except pop the card in. Done.
Installation steps
Literally popped the card in and it's done, 5 minute install.
(edit) After the install boot to recovery, disable System Integrity Protection (type csrutil disable in Terminal) then boot back to OSX and install purge-wrangler (then plug the GPU in when purge-wrangler asks you to).
Due to the Thunderbolt 3 to Thunderbolt 2 adapter my bandwidth is capped at 20 Gbps instead of the 32 Gbps you expect with this enclosure
Benchmarks
Running at 20 Gbps
Comments
Replaced my Radeon Vega 64 with this one as soon as Catalina started supporting it and before my Amazon prime return window ended.
Simple no effort install. Plug and play
@vonthing Nice build! Please make sure to mention both hardware and software installation steps so that it doesn't confuse readers. Thunderbolt 2 Macs don't have eGPU support in macOS Catalina. Unless you installed Purge-Wrangler script or boot into macOS with automate-eGPU EFI, the RX 5700 XT eGPU wouldn't be plug-and-play.
• external graphics card builds
• best laptops for external GPU
• eGPU enclosure buyer's guide
2013 Mac Pro (FP D500 x2) [3rd,12C,E] + RX 5700 XT @ 16Gbps-TB2>TB3 (Mantiz Saturn Pro) + macOS 11 [build link]
Hello! I use the same configuration as you, but the system does not recognize me the graphics card (AMD RX570) The icon above appears for a moment, but disappears and the graph is not detected. Any solution? Thank you
To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.
.@aobreroes As stated in my reply to the OP, Thunderbolt 1 & 2 Macs do not have native eGPU support in macOS Catalina. You'd need to install either Purge-Wrangler or use automate-eGPU EFI boot loader.
• external graphics card builds
• best laptops for external GPU
• eGPU enclosure buyer's guide
2013 Mac Pro (FP D500 x2) [3rd,12C,E] + RX 5700 XT @ 16Gbps-TB2>TB3 (Mantiz Saturn Pro) + macOS 11 [build link]
Yes @itsage is correct, I installed purge-wrangler, forgot about that sorry 
Adding it now.
@vonthing @itsage Thank you very much for the help! Finally that problem was solved. But I requested a replacement for my Razer Core X, I had a problem with the power supply and did not turn on the next day ... 🙁 waiting for the new article
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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@vonthing I have a 2013 MBP 15" I'm looking to setup for gaming. Do you use your eGPU in Windows bootcamp? And do you use an external monitor?
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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Hello, I'm thinking to buy MSI Radeon RX 5700 XT, but I have Razer Core X (no Chroma). Can you confirm that this setup will work? I'm super confused, because: from XT specifications I see that this graphic card required 650 watt, but Razer Core X (no Chroma) has the next specifications: "GPU Max. Power Support: 500 watts". The difference seems huge! Next, I opened the Apple website, and it said "AMD Radeon 5700 XT" can be used with Razer Core X (but not mention Chroma or not). Ok, seems like it works, now let's open the Razer website at "MACOS COMPATIBLE GRAPHICS CHIPSETS": and again, there is NO Radeon RX 5700 XT in the list. I'm confused…
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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works like a charm, still very happy with it although I lost some things on my MBP, like not being able to use the internal hdmi port anymore after disabling the nvdia gpu. No worries about the power, it works with all my photo and videosoftware (like PPro) and the graphics card doesn't even spin that much. See my post with MBP late 2013 I7 for specs!
Ajay
MBP retina 15, late 2013, (I7-4850HQ),16GB, TB2, Razer Core X, Powercolor AMD RX 5700 XT Red Devil, BenQ SW320
2013 15" MacBook Pro (GT750M) [4th,4C,H] + RX 5700 XT @ 16Gbps-TB2>TB3 (Razer Core X) + macOS 10.15.5 [build link]