It also gains three extra vertex shaders, bringing the total to 5 units. The R5xx family introduced a more advanced onboard motion-video engine. 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. Radeon R5xx Acceleration v. In addition to ring bus, each memory channel now has the granularity of bits, which improves memory efficiency when performing small memory requests. ATI Technologies products Video cards. This generation has support for all recent memory types, including GDDR4.

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Extreme Performance by Powerful 512MB Memory on Board!

With such a large number of threads per “quad”, ATI created a very large general purpose register array that is capable of multiple concurrent seriex and writes and has a high-bandwidth connection to each shader array. Again, the smaller cores such as RV and RV receive cutbacks due to their smaller, less costly designs. Because of its smaller design, these cards also offer lower power demands 30 wattsso they run cooler and can be used in smaller cases. RV, for example, has aeus internal bit buses instead.

The demo showcased a highly complex environment, with high dynamic range lighting HDR and dynamic soft shadows. The X series has two parts, which are quite different with regards to seried.

This page was last edited on 8 Mayat 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. Ruby’s latest nemesis, Cyn, was composed ofpolygons. ATI has taken this step with the expectation that future 3D software will be more pixel shader intensive.


Asus Radeon X (PCI-e, MB) Overview – CNET

For example, the X uses 4 “quads”. Radeon HD Series.

Its advantage over X is both lower sdries consumption and heat output. Other improvements include x texture support and ATI’s 3Dc normal map compression sees an improvement in compression ratio for more specific situations.

Around the chip there are two bit ring buses running at the same speed as the DRAM chips, but in opposite directions to reduce latency. The X cards have 3 pixel shaders on each pipeline instead of 1, giving a asuz of 48 pixel shader units.

The chips have 4 texture units4 ROPs4 pixel shadersand 2 vertex shaderssimilar to the older X – X cards. The Radeon X series using the core was introduced on October 5,and competed primarily against nVidia’s GeForce series.

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. ATI Technologies products Video cards. Contrasting the X however, R’s shader units are vastly improved.

At the end of the pipeline, the texture addressing processors are now decoupled from pixel shader, so any unused texturing units can be dynamically allocated to pixels that need more texture layers. In addition to ring bus, each memory channel now has the granularity of bits, which improves memory efficiency when performing small memory requests.


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 ATI opted to fit the cards with either MiB or MiB on-board memory foreseeing a future of ever growing demands on local memory size. 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.

This modular design allows ATI to build a “top to bottom” line-up using identical technology, saving research and development time and money. Archived from the original on May 7, These chips basically use 1 “quad” referring to 4 pipelines of a R, whereas the faster boards use just more of these “quads”. In other projects Wikimedia Commons.

A compatible HDCP display is also needed for this. It also gains three extra vertex shaders, bringing the total to 5 units. The chip’s single “quad” has 3 pixel shader processors per pipeline, similar to the design of R’s 4 quads.

Views Read Edit View history. The primary change between R and R is that ATI changed the pixel shader processor to texture processor ratio.