AMD has introduced the Radeon HD 7400M, 7500M and 7600M GPUs. These new mobile chips are 40nm and are based on the company's VLIW5 architecture. Basically, the new GPUs are pretty much the same as the 6000M series counterparts, save a couple of improvements.
The specs above don't hint at any great performance improvements over the 6400M and 6500M series. Yes, the 7500M has 80 more stream processors than the 6500M, but the 7400M is also saddled with half the memory interface width of the 6400M. At least all the 7000M-series GPUs have UVD3 video decoding blocks, which support DivX and XviD video acceleration. You might remember that some of the 6000M-series GPUs, including the 6500M, feature silicon repurposed from the Mobility Radeon HD 5000 series and thus have older UVD logic.