GTX 480M(DX11 + PhyX) is 40% faster than ATI Mobility 5870 ? (no PhyX)

[Boissez]

This has marketing fail written all over it. The way I see it:

Desktop HD5770~GTX260
Desktop GTX465~GTX275/285

The thing is then that the HD5870M and GTX480M are downclocked 18% and 30% respectively compared to their desktop variants. IOW Performance should be pretty close. IOW I'd guess that the GTX480M should be around 5-10% faster (IRL) than the HD5870M. Considering the GTX480M has twice the TDP... Well done Nvidia