ATI, and by inference Rockdirect, has hit back with the Mobility RADEON X800 XT 256MB GPU, boasting hither-to unseen levels of notebook performance. Put quite simply and without adding hyperbole on top, it's the fastest mobile 3D solution to date, and it's almost as fast as a desktop ATI RADEON X850 XT 256MB. That's serious food for thought, isn't it?