There is a great deal of variation among the eGPU enclosures as well. Manufacturers often aren't clear about this, so it pays to look at reviews to find out for sure. Having at least one Thunderbolt 3 port is a definite prerequisite, but some computers, especially ones that include discrete GPUs and ultra-low volt (ULV) CPUs, only provide two lanes of PCIe to the TB3 port rather than the maximum of four, significantly compromising the bandwidth of the TB3 port.
In general that is accurate, but there are definitely tradoffs.įor anyone considering an eGPU, the first consideration is what sort of computer it's for. The idea is that since a TB3 port includes a PCIe bus, connecting a chassis to it that incorporates a PCIe slot would enable using a desktop graphics card in a laptop. There's been quite a bit of debate about the merits of this approach and whether or not it actually works.
The eGPU has been touted as a way to add or upgrade the GPU in a laptop, mini, or all-in-one personal computer.
Here's a comprehensive guide to navigating the eGPU maze. An eGPU can be a great way to make your machine more powerful, but it isn't straightforward in how to choose one.
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