Like its predecessor X, the R chip carries 4 “quads” 4 pipelines each , which means it has similar texturing capability if at the same clock speed as its ancestor, and the NVIDIA series. The primary change between R and R is that ATI changed the pixel shader processor to texture processor ratio. Retrieved from ” https: This means that RV has the same texturing ability as the X at the same clock speed, but with its 12 pixel shaders it encroaches on X’s territory in shader computational performance. The card was launched on August 23, By using this site, you agree to the Terms of Use and Privacy Policy.

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ATI has been working for years on a high-performance shader compiler in their driver for their older hardware, so staying with a similar basic design that is compatible offered obvious cost and time savings. These chips basically use atu “quad” referring to 4 pipelines of a R, whereas the faster boards use just more of these “quads”.

Ruby’s latest nemesis, Cyn, was composed ofpolygons. Contrasting the X however, R’s shader units are vastly improved.

Views Read Edit View history. Retrieved 7 December The card was launched on August 23, The Radeon X video cards, that included a R, were released with a delay of several months because ATI engineers discovered a bug within the GPU in a very late stage of the development.

With chips such as RV and R, where the number of shader units per pipeline triples, the efficiency of pixel shading drops off slightly because these shaders still have the same level of threading resources as the less endowed RV and R This page was last edited on 8 Mayat The chip also ups the vertex shader number from 6 on X to 8. The R5xx family introduced a more advanced onboard motion-video engine. This generation has support for all recent memory types, including GDDR4.


ATI has taken this step with the expectation that future 3D software will be more pixel shader intensive. The X and X series fixes several flaws in the X design and adds a significant pixel shading performance boost. The X series has two parts, which are quite different with regards to performance. Current technologies and software. The X cards have 3 pixel shaders on each pipeline instead of 1, giving a total of 48 pixel shader units.

Radeon HD Series. R and R had nearly identical memory controller designs, with the former being a bug fixed release designed for higher clock speeds.

The X Pro is the first ATI card that supports native Crossfire implementation by a pair of internal Crossfire connectors, which eliminates the need for the unwieldy external dongle found in older Crossfire systems. This modular design allows ATI to build a “top to bottom” line-up using identical technology, saving research and development time and money. Not only are they fully Shader Model 3 capable, but ATI introduced some innovative advancements in shader threading that can greatly improve the efficiency of the shader units.


HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup. With such a large number of threads per “quad”, ATI created a very large general purpose register array that is capable of multiple concurrent reads and writes and has a high-bandwidth connection to each shader array. The RV has a 3: ATI Technologies products Video cards.

Radeon X1000 series

Using a Linux distribution a series of open source Radeon drivers are available. This provides temporary storage necessary to keep the pipelines fed by having work available as much as possible. R, however, differs with its central controller arbiter that connects to the “memory clients”.

The demo showcased a highly complex environment, with high dynamic range lighting HDR and dynamic soft shadows.

Radeon X series – Wikipedia

RV, for example, has two vide bit buses instead. Archived from the original on May 7, A compatible HDCP display is also needed for this. The R is the foundation for a line of DirectX 9.

Webarchive template wayback links. This means that RV has the same texturing ability as the X at the same clock speed, but with its 12 pixel shaders it encroaches on X’s territory in shader computational performance.