The i7-4700MQ is the recommended CPU for a laptop
Most laptops that have these specs tend to be the ones that are multi-media laptops, meaning that the CPU and the GPU share a heatsink. If one of them gets too hot the other will slow down to prevent overheating.
This is just a heads up for you, as Dolphin is pretty heavy on the CPU/GPU
You may want to look for a dedicated gaming laptop that has a dedicated heatsink for the CPU and one for the GPU. It will be a little more expensive though, but will pay off when playing more demanding games.
Most laptops that have these specs tend to be the ones that are multi-media laptops, meaning that the CPU and the GPU share a heatsink. If one of them gets too hot the other will slow down to prevent overheating.
This is just a heads up for you, as Dolphin is pretty heavy on the CPU/GPU
You may want to look for a dedicated gaming laptop that has a dedicated heatsink for the CPU and one for the GPU. It will be a little more expensive though, but will pay off when playing more demanding games.