Graphics processing speed can be improved by a huge number of factors. It’s a bit like Formula One cars. Often one team spends ages developing a series of small improvements – each of which gives them a small boost – only to find that the competition made one single change and blasted to the front of the grid (we’re thinking ‘rear diffuser’). The next generation of Radeons is several months away, but it’s looking good for the graphics division of CPU giant AMD. Let’s break the future down into manageable blocks and see what might be possible by Christmas.