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AMD launch the ATI Radeon HD 5670
Today AMD launched the Radeon HD 5670, based on the 3rd GPU in the Evergreen family, the Redwood. Engraved at 40nm like Cypress and Juniper, this particular DirectX 11 chip has 627 transistors. It has half as many processing and texturing units and ROPs as Juniper, but still a 128-bit memory bus.
Compared to the HD 4770, the HD 5670 is smaller in terms of processing power – the 4770 is between 54 and 83% faster but the 5670 has 25% extra memory bandwidth. Bandwidth has been doubled compared to the HD 4670, for a similar fillrate and processing power up by 29%. Filtering performance is however 54% higher on the HD 4670.
In practice, the first tests show that the HD 5670 is between 40 and 50% faster than the HD 4670. The 5750 remains of course a long way ahead (50% faster). With pricing at around €80 announced for the 512 MB version, this card seems very nicely positioned, with AMD setting it up against NVIDIA’s GT 240.
The only problem is, who is the card really aimed at? Those who want to do some proper gaming would be better off spending another €30 or so for the much faster 5750. Those who won’t be dealing much in 3D performance but are interested in HTPC would be better off waiting for the forthcoming Radeon HD 5500 and 5450, which will be based on a smaller GPU (Cedar) but with the same functionality.
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