A question about eGPUs and Thunderbolt 3 connectivity

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naramzoiudamian

May 1, 2018
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Hello!

I own a Medion laptop and I use it for most of my gaming. The laptop has an Intel Core i5 6400U and a GeForce 930M. When I bought it I thought it was gonna support pretty much any game that I would play. I was wrong.

I am now considering buying an eGPU, but all of them are connected via a thunderbolt 3, and my laptop only has USB 3.0.

After searching the internet for quite a lot of time, I couldn’t find an adapter.

Does anyone know if there is an thunderbolt 3 to USB 3.0 adapter out there and do you guys think it will work?

Thank you for your time!
 
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I'm sure there are thunderbolt 3 (usb c) to usb 3.0 adapters but this still won't work. The problem is that usb 3 doesn't have enough throughput to support an eGPU. Thunderbolt 3 has a maximum throughput of 40 Gbps and it still decreases gpu performance quite noticeably. Usb 3 only has a maximum throughput of 5Gbps and will therefore not be able to support an eGPU.

Your best bet will be to use the internal Pcie connector that is used by your wireless card to connect a gpu. This does come with several disadvantages though. For example, you won't be able to connect to wifi anymore, you will have to open your laptop and run a cable to the pcie connector and you will probably face numerous software problems/challenges when trying to get...
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Chasingfaith

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May 7, 2016
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I'm sure there are thunderbolt 3 (usb c) to usb 3.0 adapters but this still won't work. The problem is that usb 3 doesn't have enough throughput to support an eGPU. Thunderbolt 3 has a maximum throughput of 40 Gbps and it still decreases gpu performance quite noticeably. Usb 3 only has a maximum throughput of 5Gbps and will therefore not be able to support an eGPU.

Your best bet will be to use the internal Pcie connector that is used by your wireless card to connect a gpu. This does come with several disadvantages though. For example, you won't be able to connect to wifi anymore, you will have to open your laptop and run a cable to the pcie connector and you will probably face numerous software problems/challenges when trying to get your setup to work. All in all, this isn't a very good permanent solution and I can't really recommend it. I'm afraid you're better off building a (second hand) gaming desktop for the price of an eGPU setup.
 
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