This provides temporary storage necessary to keep the pipelines fed by having work available as much as possible. X was not behind schedule, and was always planned as the “spring refresh” chip. This page was last edited on 8 May , at 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. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.

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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.

Views Read Edit View history. Retrieved 23 March This generation has support for all recent memory types, including GDDR4.

From Wikipedia, the free encyclopedia. This series is the budget solution of the X series and is based on the RV core.

Webarchive template wayback links. This refers to ATI’s plan to boost the efficiency of their GPU, 16650 of going with a brute force increase in the number of processing units. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup. 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.


Unfortunately, due to the programming content of available games, the X is greatly hampered by lack of texturing power. Changes necessary for SM3. X was not behind schedule, and was always planned as the “spring refresh” chip.

Radeon X1000 series

The R is the foundation for a line of DirectX 9. Its advantage over X is both lower power consumption and heat output. Last AMD Catalyst version that officially supports this series, is 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 card was launched on August 23, When one of the shader quads becomes idle, due to a completion of a task or waiting for other data, the dispatch engine will assign the quad with another task to do in the meantime, with the overall result being a greater utilization of the shader units, theoretically.

Radeon R5xx Acceleration v. Retrieved from ” https: This modular design allows ATI to build a “top to bottom” line-up using identical technology, saving research and development time and money. For example, the X uses 4 “quads”.

ATI Radeon X PRO AGP Specs | TechPowerUp GPU Database

This means that RV has the pr 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 chip also ups the vertex shader number from 6 on X to 8. Like its predecessor X, the R chip carries 4 “quads” 4 pipelines eachwhich means it has similar texturing capability if at the same clock speed as its ancestor, and the NVIDIA series. The X series has two parts, which are quite different with regards to performance.


The chip’s single “quad” has 3 pixel shader processors per pipeline, similar to the design of R’s 4 quads. Contrasting the X however, R’s shader units are vastly improved. This page was last edited on 8 Mayat UVD 7 [18] [d].

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 Support in this table refers to the most current version. The chips have 4 texture units4 ROPs4 pixel shadersand 2 vertex shaderssimilar to the older X – X cards. 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.

Because of its smaller design, these cards also offer lower power demands 30 wattsso they run cooler and can be used in smaller cases.