I have this (http://www.shopping.hp.com/en_US/home-office/-/products/Laptops/HP-ENVY/G1L49AV?HP-ENVY-15t-j100-Quad-Edition-Notebook-PC-with-Windows-7-ENERGY-STAR-) laptop that has an i7 4700MQ with no dedicated gpu. It works wonders for SSBB. I've never had it overheat/throttle (temps max around ~80C) and I play 2.5X IR without a hitch. Definitely reccomend. However i7 4700MQ might be overkill if you're only planning to play SSBB, it's a very lightweight game.
[color=green]Windows 7 x64 / i5 4690k @ 3.5 GHz / GTX 970 / 8GB RAM[/color]