Unless you have zero budget, I would strongly suggest going up to a "gaming" desktop computer. A gaming GPU can put out 300 W of heat no problem. If your laptop

Unless you have zero budget, I would strongly suggest going up to a "gaming" desktop computer. A gaming GPU can put out 300 W of heat no problem. If your laptop GPU did the same it would melt, it's going to be limited to around 100 W. And heat dissipation is directly proportionaly to speed. Plus in a desktop, you have the ability to upgrade to faster GPU or even go for multiple GPUs. Caveat: such machines, especially multi-GPU, are loud and produce enough heat to warm up a whole room quickly. And cloud will likely be cheaper if you believe you will not spend more than 10% of the next couple of years running the GPU at full blast.