How to connect 2020 13" MacBook Pro with the latest LG UltraFine 5K Display (27M...
 
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How to connect 2020 13" MacBook Pro with the latest LG UltraFine 5K Display (27MD5KL)?  

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101110100101001010
(@101110100101001010)
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Joined: 1 month ago
 

Hello. I have the latest 2020 13" MacBook Pro (2GHz quad-core 10th-generation Core i5, Intel Iris Plus Graphics, 4 TB3 ports). I also ordered the latest LG UltraFine 5K Display. I'm trying to figure out what the best eGPU setup should be.

I know I can get a Blackmagic eGPU and be done with it. But I want an eGPU that is upgradable in the future. I am leaning towards a Radeon 5700 XT card.

My research pointed me to these options. Can you verify if these options are feasible and what the negative "side effects" of these options are:

  1. Getting an eGPU with 2 TB3 ports like the Akitio Node Pro and put the 5700 XT in there. Then I can use the first TB3 port to plug my Macbook Pro and the 2nd TB3 port to plug the monitor. Will this work?
  2. Use any eGPU enclosure with the Radeon Pro W5700 and plug in the monitor into the W5700's usbc output.
  3. Use a 2-PCIE slot eGPU enclosure like the Akitio Node Duo and plug in a 5700XT in one slot at an alpine ridge thunderbolt 3 card on the other.

Can you comment on which of these 3 options will work?

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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Eightarmedpet
(@eightarmedpet)
Noble Member Moderator
Joined: 4 years ago
 

@101110100101001010, I'll be brief as these questions have been answered before, but the search isn't always easy to use... (at least for me).

 

1. Yes but no, the second TB3 port will not connect the GPU to the 5K just create a daisy chain, so no real benefit.

2. Would work, as you have Gen 2 5K but they are expensive GPUs.

3. Yep, will work, but you are limited to certain sized/powered cards and I dont think a proper PSU was ever sorted for GPU use.

 

What you've missed is option 4, the easiest way, just buy an active TB3 to DP cable, possibly a VR one with USB A too which helps you keep the speakers and camera working. The only downside of all of these options is you will only ever get 4K.

 

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

---

LG 5K Ultrafine flickering issue fix

 
2017 13" MacBook Pro [7th,2C,U] + RX 5700 XT @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15.4 & Win10 2004 [build link]  


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101110100101001010
(@101110100101001010)
Active Member
Joined: 1 month ago
 

@eightarmedpet, Thank you for your reply!

I actually read about option 4 but ruled it out because I purchased the UltraFine 5K specifically for 5K. I actually have a 4K monitor right now and I am finding that MacOS doesn't scale very well with a 27-inch 4K monitor.

I really hoping that option #1 would work. Just wanted to clarify. If I used the 2nd TB3 port to plug in the monitor, it wouldn't work at all? I will get no picture from the 5K display?

 

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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Eightarmedpet
(@eightarmedpet)
Noble Member Moderator
Joined: 4 years ago
 

@101110100101001010, no worries!

You'll get a picture on the monitor but it will be the same as plugging it directly into the laptop - so not directly accelerated by the GPU.

What are you planning on using this for work wise?

 

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

---

LG 5K Ultrafine flickering issue fix

 
2017 13" MacBook Pro [7th,2C,U] + RX 5700 XT @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15.4 & Win10 2004 [build link]  


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101110100101001010
(@101110100101001010)
Active Member
Joined: 1 month ago
 

@eightarmedpet, I want to use the GPU to accelerate video editing with either Final Cut Pro or Adobe Premiere Pro.

I am not really a gamer so no need for it to work with video games.

 

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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Eightarmedpet
(@eightarmedpet)
Noble Member Moderator
Joined: 4 years ago
 

@101110100101001010, ahhh well that changes things a bit, I'm no expert, @mac_editor has done some great experimenting and exploration of FCP workflow, but IIRC having the monitor directly connected to the GPU isnt as important...

 

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

---

LG 5K Ultrafine flickering issue fix

 
2017 13" MacBook Pro [7th,2C,U] + RX 5700 XT @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15.4 & Win10 2004 [build link]  


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101110100101001010
(@101110100101001010)
Active Member
Joined: 1 month ago
 

@eightarmedpet, I see. So I can do the loopback method where I use 1 TB3 port on my MacBook pro to connect to the 5K monitor and a different thunderbolt port to connect to the  eGPU? Do you know what percent performance loss I get with this?

 

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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joevt
(@joevt)
Noble Member
Joined: 3 years ago
 

The best option is a Thunderbolt eGPU enclosure and a Thunderbolt 3 PCIe enclosure. Install a Thunderbolt 3 add-in card into the Thunderbolt 3 PCIe enclosure. Connect two DisplayPort outputs from the GPU in the eGPU to the Thunderbolt 3 add-in card's DisplayPort inputs.

Connect the eGPU and the Thunderbolt PCIe enclosure to the Mac.

Connect the LG UltraFine 5K to the Thunderbolt 3 add-in card.

It might work, but USB and brightness control won't work without some additional software that doesn't exist yet.

 

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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Archana Poran
(@archana_poran)
New Member
Joined: 1 month ago
 
Posted by: @101110100101001010

@eightarmedpet, Thank you for your reply!

I actually read about option 4 but ruled it out because I purchased the UltraFine 5K specifically for 5K Chatiw. I actually have a 4K monitor right now and I am finding that MacOS doesn't scale very well with a 27-inch 4K monitor.

I really hoping that online web option #1 would work. Just wanted to clarify. If I used the 2nd TB3 port to plug in the monitor, it wouldn't work at all? I will get no picture from the 5K Omegle display?

 

Wooo.... I tried #2nd way for this trouble and it works for me.

 

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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ikir
 ikir
(@ikir)
Prominent Member
Joined: 4 years ago
 

The new Radeon 6x000 have USB-C output? Let’s hope it is Thunderbolt!


MacBook Pro 13" 2020 Touch Bar M1 8-core CPU 8-core GPU - 16GB unified memory - 512GB PCIe SSD
MacBook Pro 13" 2020 Touch Bar i7 quad-core 2.3Ghz - 16GB RAM - 1TB PCIe SSD

my awesome Radeon VII eGPU
my Mantiz Venus extreme mod with Sapphire Nitro+ RX Vega 64

 
2018 13" MacBook Pro [8th,4C,U] + Radeon VII @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15 [build link]  


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