Beyond3D has posted a Sapphire Atlantis Radeon 9800 review

These types of boards are often introduced later because as they are likely to be higher volume the IHV need to understand chip yields to ensure that they will get the maximum return on the wafers. The high end part is clocked to get the higher end of of the clock speed scale and pricing premium is applied to them, while the lower end are clocked to ensure as many of the left over chips are utilised as possible.

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