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Arquimedes May 19, 2020 @ 3:49pm

EGPU in a usb type C 3.1 gen 1

i am looking in my computer specs, and it says that it has a usb type c 3.1 gen 1, is that enough to buy an Egpu working as expected? dont know if 3.1 gen 1 counts as a thunderbolt 3, looking to put a rtx 1660ti or a rtx 2060

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Originally posted by Cathulhu:

That would be 5 Gigabit.
Thunderbolt 3 has at least 10 Gigabit or twice as fast.

One PCIe 3.0/3.1 lane has 8Gigabit.
So, one of your USB ports is slower than even a PCIe 1x slot.
Thunderbolt 3 is at minimum as fast as PCIe 1x slot and in a perfect case fast enough for PCIe 4x

Videocards prefer to have at least PCIe 8x.

So, whatever you connect through that will be bottlenecked, hard.

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Cathulhu May 19, 2020 @ 4:06pm

Mad Scientist May 19, 2020 @ 4:19pm

Not to mention whenever people try the whole eGPU thing; those have a nasty high rate of incompatibility. Being able to power and plug something up, doesn't mean it'll work.

You might as well just make a PC instead if you're going to buy a GPU and PSU to power it.