This series is the budget solution of the X series and is based on the RV core. Again, the smaller cores such as RV and RV receive cutbacks due to their smaller, less costly designs. 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. ATI Technologies products Video cards. Radeon R5xx Acceleration v. The card was launched on August 23,

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This refers to ATI’s plan to boost the efficiency of their GPU, instead of going with a brute force increase in the number of processing units. Retrieved from ” https: A compatible HDCP display is also needed for this. The next major change to the core is with its memory bus. Sign up for freeit takes 30 seconds. ATI Technologies products Video cards. This page was last edited on 8 Mayat HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.

This series is the budget solution of the X series and is based on the RV core.

Along these ring buses are raveon “stop” points where data exits the ring and going into or out of the memory chips. The X and X series fixes several flaws in the X design and adds a significant pixel shading performance boost. X was quickly replaced by X because of its delayed release.

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R, however, differs with its central controller arbiter that connects to the “memory clients”. Basically the chip can spread out memory requests faster and more directly to the RAM chips.

Contrasting the X however, R’s shader units are vastly improved.

The RV has a 3: As is typical for an ATI video card release, a selection of real-time 3D demonstration programs were released at launch. This generation has support for all recent memory types, including GDDR4.

Like its predecessor X, the R chip carries 4 “quads” 4 radeno eachwhich means it has similar texturing capability if at the same clock speed as its ancestor, and the NVIDIA series. Unlike the X, the X has 16 pixel shader processors as well, and equal ratio of texturing to pixel shading capability.

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RV, for example, has two internal bit buses instead. 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.

ATI Catalyst Radeon X1300/X1550 series

Support in this table refers to the most current version. TechSpot Account Sign up for freeit takes 30 seconds. 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. Your name or email address: ATI has taken this step with the expectation that future 3D software will be more pixel shader intensive.


Last AMD Catalyst version that officially supports this series, is 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. It also gains three extra vertex shaders, bringing the total to 5 units. Add your comment to this article You need to be a member to leave a comment.

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.