ATI's R580 has 16 pipelines but 48 Pixel Shader units
 

BACK IN September, ATI told us that you need more per pixel operations then you need textures. It’s the ratio that changed over the years, but we don’t want to make a history class of this article. It said that it believes that the industry should go that way. Nvidia, on the other hand, believes in different ratios between pixels and textures.

We finally confirmed that ATI's upcoming R580 GPU will again have sixteen pipelines only but this time it will have 48 Pixel Shader units. What does that mean?

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