The good news just keeps coming for Nvidia. In an article from Notebookcheck, they are advising people purchasing an ultrabook with GeForce MX150 graphics to be on the lookout for an underclocked, less powerful GPU hiding under the same name, and not advertised as such. They have discovered two variants of the MX150 in various laptops, the standard has an ID of 1D10, and another with the ID of 1D12. The 1D12 has been found in 13 inch ultrabooks, and has a 36% lower base clock, and 20-25% less performance than the 1D10. Things like this make me wonder if someone thinks I'm an 1D10T. While we don't have an issue with selling multiple variants of the same silicon, it's disappointing to not see any marketing material differentiating between the two versions especially since their performance deltas are more than marginal. Casual gamers or heavy users looking for full performance out of the MX150 should double-check new notebooks before committing to a full purchase.