Tons of creatives work on laptops, the Achilles' heel of which is often the GPU. For anyone who wants to improve their performance without investing in an entirely new machine, an external GPU could be the answer. Though I have a laptop, I actually do the majority of my work on a Mac Mini, which also suffers from the problem of a weak GPU. In fairness, it is actually a perfectly fine GPU for most work, but if you are someone who does intensive photo and video work, it can start to bog you down a bit. That being said, I love Mac Minis.
Review: $300 Razer Core X - the best eGPU for Mac! [9to5Mac
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How to set up the Razer Core
Razer Core X External GPU Review
How to set up the Razer Core
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Made a video on using an eGPU showing the Razer Core X Chroma : r