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Last active December 15, 2018 19:27
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Huawei Matebook x Pro PCI-Express 2 lane bandwidth limitations with eGPU
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matebook-x-pro-pcie-x2-bandwidth-limitations.md

Huawei Matebook x Pro PCI-Express 2 lane bandwidth limitations with eGPU

"In short, with current TB3 overheads, 2 lanes is enough to transfer data to the GPU. If you use a display connected to the external GPU, you'll see almost zero performance difference. If you want to use the internal display of your laptop, 2 lanes is not enough, and you'll need 4 lanes to shuffle the DisplayPort data back."

https://www.reddit.com/r/Huawei/comments/8niq84/matebook_x_pro_i7_3d_mark_scores_razer_core/dzx3n36/

Full Thread: https://www.reddit.com/r/Huawei/comments/8niq84/matebook_x_pro_i7_3d_mark_scores_razer_core/

Original Reference: https://www.notebookcheck.net/eGPU-Two-PCI-e-lanes-no-problem.266658.0.html

Further discussion:

"The MateBook X Pro is not on the [Best ultrabooks for eGPU use] list because the dGPU model uses a 2-lane PCIe connection."

https://egpu.io/forums/which-gear-should-i-buy/ultrabook-buyers-guide-external-gpu/#post-37396

https://egpu.io/forums/laptop-computing/huawei-matebook-x-pro

https://egpu.io/forums/which-gear-should-i-buy/huawei-matebook-x-pro-egpu-gaming/

https://egpu.io/forums/which-gear-should-i-buy/huawei-matebook-x-pro-discrete-nvidia-gpu-compatible-with-egpu-amd-card/

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