The GTX660M should be more than enough to handle 3x IR (which is actually larger than 1080p) so you'll be fine for that. Dunno how much AA you can put on it, but you can always play around to see where slowdown occurs. Your CPU should do pretty well with Skyward Sword if you can keep your laptop cool enough to use turbo boost. If you turbo boost with just 2 cores, you can reach a speed of 3.3 GHz. On an Ivy Bridge CPU, that should give you good overall performance with this game.
If you're curious about how your laptop compares to other systems, have a look the Dolphin Wiki entry for Skyward Sword. Note, I'm not a laptop expert, nor have I personally run this game on Dolphin, but I try to make educated guesses based on what people say around here :p
If you're curious about how your laptop compares to other systems, have a look the Dolphin Wiki entry for Skyward Sword. Note, I'm not a laptop expert, nor have I personally run this game on Dolphin, but I try to make educated guesses based on what people say around here :p