Max-Q technology allows powerful GPUs to fit in slim laptops. In short, you can have a light, slim, and portable device with a fast GPU inside – and you don’t need biceps like Arnold when you have to carry your notebook. The Max-Q GPUs have another good side – they have smaller power limits and reduced frequencies than the full-blown variants and that’s why they don’t dissipate much heat and don’t require significant cooling like the standard non-Max-Q VGAs.
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https://laptopmedia.com/comparisons/nvidia-geforce-gtx-1050-vs-gtx-1050-max-q-power-or-efficiency/