back to article Group Test: AMD Radeon HD 4000 series

When AMD updated the RV670 chip used in the ATI Radeon HD 3000 series to the RV770 in the HD 4000 line, it went ballistic and increased the number of unified shaders from 320 to 800. This change increased performance by a healthy amount and made the HD 4850 the apple of Register Hardware’s eye. But that was only the start of …


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  1. Flocke Kroes Silver badge

    Can we bury 'effective clock speed'?

    'Effective clock speed' is marketing drivel for confusing newbies. If you cannot stick to GB/s please use something obviously useless like 747's full of mag tape.

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