wraggster
June 21st, 2005, 18:32
In a recent interview with German magazine Gamestar, ATi has made some of the boldest claims to date regarding the base-level power of the Xbox 360 console.
Perhaps offering the most in-depth look at how the 360 chip operates, ATi head of developer relations Richard Huddy said, “First and foremost we have a 'unified shader architecture'. No other console or PC chip can boast this. And what, in short, it means is that the hardware is always able to run at 100% efficiency. All previous hardware has separate vertex and pixel shaders. That means that that previous hardware just had to hope that the vertices and pixels came in just about the right ratios. If you got too many pixels then the vertex engines would be idle, and if you got too many vertices then the pixel engines would starve instead. (...) With a unified architecture we have hardware that automatically moulds its-self to the task required and simply does whatever needs to be done. That all means that the Xbox 360 runs at 100% efficiency all the time, whereas previous hardware usually runs at somewhere between 50% and 70% efficiency.”
Huddy went on to explain how memory can be accessed from these shaders: “Next on my list is the hardware support for directly accessing memory from within the shader units. This makes the Xbox graphics chip work in a much more flexible way than has ever been possible before. Now it’s relatively simple for a games developer to write code to do anything inside the graphics chip that they could do elsewhere. Accessing memory in arbitrary ways sounds like a very esoteric thing to do within a graphics chip, but actually it allows you to do some amazing things which mean that Xbox 360 games will be more like movies than you ever imagined. It’s so powerful that I’d say that this feature alone makes the Xbox 360 technically superior to any other console planned for the next five years.”
Perhaps offering the most in-depth look at how the 360 chip operates, ATi head of developer relations Richard Huddy said, “First and foremost we have a 'unified shader architecture'. No other console or PC chip can boast this. And what, in short, it means is that the hardware is always able to run at 100% efficiency. All previous hardware has separate vertex and pixel shaders. That means that that previous hardware just had to hope that the vertices and pixels came in just about the right ratios. If you got too many pixels then the vertex engines would be idle, and if you got too many vertices then the pixel engines would starve instead. (...) With a unified architecture we have hardware that automatically moulds its-self to the task required and simply does whatever needs to be done. That all means that the Xbox 360 runs at 100% efficiency all the time, whereas previous hardware usually runs at somewhere between 50% and 70% efficiency.”
Huddy went on to explain how memory can be accessed from these shaders: “Next on my list is the hardware support for directly accessing memory from within the shader units. This makes the Xbox graphics chip work in a much more flexible way than has ever been possible before. Now it’s relatively simple for a games developer to write code to do anything inside the graphics chip that they could do elsewhere. Accessing memory in arbitrary ways sounds like a very esoteric thing to do within a graphics chip, but actually it allows you to do some amazing things which mean that Xbox 360 games will be more like movies than you ever imagined. It’s so powerful that I’d say that this feature alone makes the Xbox 360 technically superior to any other console planned for the next five years.”