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ATI ships AGP-edition X850 XT graphics chip

X800 XL too

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ATI today announced AGP 8x versions of its Radeon X800 XL and X850 XT graphics chips, three months after it launched the PCI Express versions.

The new chips are pitched at customers looking to upgrade the graphics in older PCs, much as ATI continued to support PCI after the more advanced, graphics-specific AGP bus had become established.

While the X800 XL uses ATI's latest PCI-E-to-AGP bridge chip, aka 'Rialto', the X850 is an AGP-native part, the chip maker said.

The X850 is ATI's R481 chip, fabbed at 130nm and constructed using low-k dielectric insulating material. It contains 16 parallel pixel processing pipelines and supports up to 256MB of GDDR 3 video buffer memory across a 256-bit bus. Like the PCI-E version, it offers ATI's HD-oriented SmartShader, SmoothVision, HyperZ and VideoShader technologies. It supports ATI's 3Dc normal map compression system in lieu of DirectX 9.0 Shader Model 3.0 support.

It is believed to be clocked at around 540MHz, compared to around 400MHz for the X800 XL. That part, also known as the R430, is fabbed at 110nm.

ATI said both chips were available immediately, with boards based on the new GPUs already on sale from ATI itself and a number of board partners. ®

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