This post focuses on eGPUs on Ubuntu Linux. The folks over at eGPU.io maintain a list of the best laptops for eGPU applications.ĮGPUs are supported on Windows and Linux. Laptop manufacturers can design laptops with fewer than four lanes though, so you should consult the laptop manufacturer to find out how many PCIe lanes are available using Thunderbolt 3 on your machine. Thunderbolt 3 is a hardware interface that works over USB-C and supports up to four PCI Express (PCIe) lanes between the host CPU and devices such as GPUs, which gives you a theoretical maximum: 4 x 8Gbps (the bandwidth of a single PCIe Gen3 lane) = 32 Gbps Making sure that your laptop supports Thunderbolt 3 The performance of an eGPU solution depends largely on the performance of the GPU, performance of the CPU, and connection bandwidth between the two. With a single Thunderbolt 3 cable, I can connect my laptop to a powerful, dedicated GPU multiple monitors and peripherals. Most enclosures provide all of these, so all you need to use them is a laptop with Thunderbolt 3.īecause I value the portability of a thin and light laptop but want the raw horsepower of a dedicated GPU to get serious work done, eGPUs allow me to get the best of both worlds.
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