Huawei Matebook X Pro - 2 PCIe Lanes for Thunderbolt 3 Port
 
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[Solved] Huawei Matebook X Pro - 2 PCIe Lanes for Thunderbolt 3 Port  

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Jan Buttiker
(@eltocino)
Eminent Member
Joined: 3 years ago
 

Hello guys,
I just joined the forum because I'm searching a replacement for my notebook + desktop setup.
Whilst I found almost anything in regard to a Dell XPS that I have my eyes on, I found nothing about the new Huawei Matebook X Pro.
(The one with the funky webcam in a keyboard button)
Has anyone ever had this device in his hands to test, if the Thunderbolt connection is PCIEx4 or x2?
Huawei only mentions, that it supports eGPU up to a GTX1080 but that's not very usefull info.

The device would be right up my sleeve, since I'm searching for a Ultrabook which I can connect to an eGPU with my ASUS 21:9 monitor.
I also looked into the Razer Blade Stealth but they don't sell those in Switzerland  Roll

Thanks for your answers

2018 MacBook Pro 15", i7-8750H, 16GB RAM, Radeon Pro 555X | Dell Latitude 7490, i7-8650U, 16GB RAM | Razer Core X Chroma, Gigabyte Radeon RX 5700 XT

 
2018 15" MacBook Pro (RP555X) [8th, 6C, H] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X Chroma) + macOS 10.15.2 & Win10 [build link]  


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4chip4
(@4chip4)
Estimable Member
Joined: 3 years ago
 

It's almost certainly an x2 in the discrete configuration (core 8*50U chip + MX150 => x2). There is a chance it's a x4 in the non-discrete variant, but they don't have a separate spec page (the giveaway would be if that variant is also USB-C + TB3, or TB3 + TB3 - like the difference between the 13" and the 15" Spectre x360).

2017 HP Spectre x360 15 i7-8550U GTX150 + GTX970@16Gbps-TB3 (HP Omen Accelerator) + Oculus Rift + Win10 (no guide)
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Employed by HP, but my posts and opinions expressed on this forum are my own.


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Jan Buttiker
(@eltocino)
Eminent Member
Joined: 3 years ago
 

Alright thanks for the answer. I guess I'll wait till someone gets their hands on the device.

2018 MacBook Pro 15", i7-8750H, 16GB RAM, Radeon Pro 555X | Dell Latitude 7490, i7-8650U, 16GB RAM | Razer Core X Chroma, Gigabyte Radeon RX 5700 XT

 
2018 15" MacBook Pro (RP555X) [8th, 6C, H] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X Chroma) + macOS 10.15.2 & Win10 [build link]  


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usafballer
(@usafballer)
Eminent Member
Joined: 3 years ago
 

Notebookcheck's review of the laptop (which included the MX150) states it's a 4-lane implementation, but I know thats not conclusive.

2018 15" Dell XPS 15 9575 (VegaMGL) [8th,4C,G] + GTX 1070 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 [build link]  

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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@usafballer I read notebookcheck's review of this laptop (i5-8250U, MX150) and while they listed full 4 lanes TB3 as a pros I did not find any factual screen captures or performance tests. The NVMe results indicate there are 4 lanes to the M.2 slot. The MX150 dGPU needs 4 lanes. I highly doubt the Thunderbolt 3 controller gets the remaining 4 lanes. Like @4chip4 said, it's most likely a x2 PCIe connection with one Thunderbolt 3 port.

external graphics card builds
best laptops for external GPU
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2020 15" HP Spectre X360 [11th,4C,G] + RTX 2080 Ti @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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usafballer
(@usafballer)
Eminent Member
Joined: 3 years ago
 

I agree with you @itsage - it's likely 2 lanes, which is a bummer.  I am contacting support to ask - first response they said "yes it features 2 USB-C ports".  Waiting on one more follow up.  Still one hell of a great laptop deal with a unique screen ratio for under 1200 bucks.  And 2 lanes is still fine if you are outputting to external monitor only with only a minor loss in performance.

2018 15" Dell XPS 15 9575 (VegaMGL) [8th,4C,G] + GTX 1070 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 [build link]  

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Mymantiz_John
(@mymantiz_john)
Vendor
Joined: 4 years ago
 

I am sure that they are just PCIe x 2 Lan.

Mantiz: ● ●


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usafballer
(@usafballer)
Eminent Member
Joined: 3 years ago
 

Both Huawei support and an amazon user have confirmed it is only 2-lanes.

2018 15" Dell XPS 15 9575 (VegaMGL) [8th,4C,G] + GTX 1070 @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 [build link]  

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genium me
(@genium_me)
Active Member
Joined: 3 years ago
 

I am currently in contact with Huawei themselfs as I am too getting contradicting statements about this, I will keep you posted once I find something out,

I got a question myself thou, I saw today a report of someone hinting to issues in setting up a system with an eGPU and the MateBook Xpro, does anyone know why that should be? Is anyone of you running this setup or anything similar with a matebook?

@usafballer were you able to confirm this for certain? As seemingly the customer support has no idea and is just giving the next best answer, I am by now taling to the engineering team.

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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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

The single Thunderbolt 3 port is attached to a 2-lane PCI Express Root [Port #9]. Confirmed here by u/Shirokiya on reddit. We can see the dGPU uses 4 lanes [Port #1], NVMe drive uses 4 lanes [Port #5], and my guess is the wireless card uses at least 1 lane [Port #11].

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2020 15" HP Spectre X360 [11th,4C,G] + RTX 2080 Ti @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 [build link]  


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