With anticipation for ATi and nVidia's next-generation video cards reaching fever pitch, and speculation running riot as to what features these GPUs will support, one question that is emerging time and again has been - What's the difference between 2.0 and 3.0 shaders?

With that question in mind, I've sat down and written a basic guide to what improvements we can expect to see in this latest shader revision. You can read the article here:

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