I have a laptop with a 4700mq and it runs flawlessly. To be honest you can probably run both full speed on something a bit weaker, just make sure you do NOT get a mobile AMD processor (i.e. A series). However, you could build a much cheaper desktop that will run both full speed. It will be about 25-50% cheaper to have a desktop over a laptop. Laptop does have the advantage of being mobile, however I favor a desktop for online play. If you buy a laptop, probably shoot for a 4700mq (and don't bother getting a dedicated graphics card to reduce cost), and make sure the processor you do choose isn't the U series (ultra low power). If you opt for a desktop, the Pentium G3220 will run both at full speed and its like $50. If you can wait until Summer the Pentium anniversary cpu's are coming out which should be good and affordable as well. However an i5 4670k will run most Dolphin games at full speed and be good for everything else as well. Hope this helped
[color=green]Windows 7 x64 / i5 4690k @ 3.5 GHz / GTX 970 / 8GB RAM[/color]