After playing this PC on low settings on a laptop with an ATI graphics card versus my desktop's NVIDIA graphics card, I feel as though it's time for an upgrade.

I'm wondering if anyone has a 3D laptop that runs this game at medium (8) graphics just fine. I'm currently looking at the Sony Vaio VPC-F215FX (specs below). I specifically want a 3D laptop for other games, and yes I'm buying into that fad because it's cool to "live" in Skyrim. But I specifically want to make sure I can at least run FFXIV (in 2D) before continuing.

Sony Vaio VPC-F215FX
2.0GHz Intel Core i7 2630QM
6GB 1333MHz DDR3
Nvidia GeForce 540M

Dell XPS 17
2.0GHz Intel Core i7 2630QM
6GB 1333MHz DDR3
Nvidia GeForce 550M

I know, the Dell XPS 17 is more powerful hands on the GPU, but will that 10 digits make a noticeable difference in performance?