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External video crad

Arkianine
By Arkianine
in Graphics Cards
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External cards are made for laptops, you would first need a Thunderbolt 3 connector. I would recommend staying away from external GPUs for a tower, as the performance difference would be significant due to the bandwidth bottleneck (Thunderbolt will have a lot less bandwidth than PCIe). To answer your question though, technically an external card would reduce both internal and card temperatures, though not nearly enough to warrant the performance dip.

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3 minutes ago, Ahajha said:

To answer your question though, technically an external card would reduce both internal and card temperatures, though not nearly enough to warrant the performance dip

That would sort of depend on the case he currently has, and the cooling conditions of the place it's used, wouldn't it?

For example a mini-ITX would certainly benefit from the GFX card being outside it, and from videos I've seen on eGPUs, the perf hit isn't *that* bad...

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Just now, Radium_Angel said:

That would sort of depend on the case he currently has, and the cooling conditions of the place it's used, wouldn't it?

For example a mini-ITX would certainly benefit from the GFX card being outside it, and from videos I've seen on eGPUs, the perf hit isn't *that* bad...

If he's running an ITX case, then perhaps. But unless thermals in the case would mean thermal throttling at load, I think he should just opt for an internal card. Plus, it's actually more expensive by about $100 to get an external card.

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52 minutes ago, Ahajha said:

External cards are made for laptops, you would first need a Thunderbolt 3 connector. I would recommend staying away from external GPUs for a tower, as the performance difference would be significant due to the bandwidth bottleneck (Thunderbolt will have a lot less bandwidth than PCIe). To answer your question though, technically an external card would reduce both internal and card temperatures, though not nearly enough to warrant the performance dip.

PCIe 3.0 x4 that Thunderbolt 3 provides is plenty for GPUs. Dropping down to that low of a speed doesn't appreciably impact the performance of a GTX 1080 (see: https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/)

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