The Alienware M17x is an impressive piece of equipment and to see it paired up with an unannounced Sandy Bridge Core i7-2xxxM series CPUs is certainly impressive, especially if you can see the 3DMark06 scores as well.
The benchmarks apparently include three different models, one with 2.0GHz Core i7-2630QM paired up with Intel integrated graphics, one with Intel's 2.2GHz Core i7-2720QM and AMD Radeon HD 6900M GPU and one with 2.3GHz Core i7-2820QM with Nvidia's Geforce GTX 460M GPU.
The most interesting detail in these benchmarks is the fact that Intel's integrated graphics are not that far behind the Nvidia GTX 460M in 3DMark06, despite the fact that Intel's integrated graphics is paired with a slower CPU. The AMD Radeon HD 6900M is the performance king, at least when compared to the other two configurations.
You can find more pictures and benchmark results here.
