
Currently, all standard external graphics processing units require Thunderbolt 3/4 technology to provide enough bandwidth (up to 40Gbps) for transferring graphics data between the laptop and the external GPU (eGPU). Unfortunately, all generations of Surface Go come with only a single USB-C 3.1 Gen 1 which has a maximum bandwidth of 5Gbps.
Model | USB-A | USB-C | Thunderbolt | Speed |
---|---|---|---|---|
Surface Go (2018) | No | Yes | No | USB 3.1 (5Gbps) |
Surface Go 2 (2020) | No | Yes | No | USB 3.1 (5Gbps) |
Surface Go 3 (2021) | No | Yes | No | USB 3.1 (5Gbps) |
Surface Go 4 (2023) | No | Yes | No | USB 3.1 (5Gbps) |

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