The separation into “quads” also allowed ATI to design a system to optimize the efficiency of the overall chip. R was unable to reach high clock speeds, being mainly designed to reduce the cost per GPU, and so a new top-of-the-line core was still needed. The new high-end R4x0-generation arrived with the X series, equipped with various core tweaks for slightly higher performance than the “R”-based X series. Apparently by reducing tile sizes, ATI was able to optimize for different triangle sizes. A 2X software setting became perceptively equivalent to 4X.

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Most of the rest of the GPU was extremely similar to R ATI showcased many of their chip’s new features in the promotional atii demo called, Ruby: By using this site, you agree to the Terms of Use and Privacy Policy. This card usually came with a 3 quad configuration, like X GTO.

Views Read Edit View history. A new pixel shader version PS2.

Used first on the Radeon X, the R was produced on a 0. This page was last edited on 14 Octoberat ATI Technologies products Video cards. Essentially, the X Pro is built on semi-defective R cores.

This new revision to PS2.

ATI R480 0.60mm BGA 80×80 Stencil Template

R was unable to reach high clock speeds, being mainly designed to reduce the cost per GPU, and so a new top-of-the-line core was still needed. Com forum, November 11, The earliest Radeon X series cards were based on the R core.

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Archived from the original on The “R”-based X line was available in 3 forms: Similar to how texture compression had been part of the Direct3D specification for years and was used for compressing regular textures, normal map compression compacted this new type of surface detail layer. If the framerate could not be maintained, atj driver will disable Temporal AA.

However, in games which this performance level could be maintained, Temporal AA was a nice addition to ATI’s excellent anti-aliasing options. Current technologies and software. Com, May 4, RV used a layout consisting of 8 pixel pipelines connected to t480 ROPs similar to GeForce 6 while maintaining the 6 vertex shaders of X Note, ATI’s “Temporal AA” was actually a temporal dithering filter for spatial AA, not de facto temporal anti-aliasing which must involve a controlled blending of the temporal subsamples from consecutive screens.

ATi Radeon R Series – Wikipedia

An X XT was planned for production, and reviewed by various hardware web sites, but was never released. Normal and parallax mapping were replacing sheer geometric complexity for model detail, so undoubtedly that was part of the reasoning. With R’s and RV’s 6 vertex shaders combined with higher clock speeds than the previous generation, ATI was able to more than double the geometry processing capability of XT.

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Com, December 1,retrieved January 17, The memory controller and memory bandwidth optimization techniques HyperZ were identical. The chip was designed for AGP graphics cards.

High sales for this card were due to its relatively high performance coupled with a cost only slightly higher than the X GT. From Wikipedia, the free encyclopedia.

ATI’s Radeon X XT Platinum Edition Preview – Graphics –

The separation into “quads” also allowed ATI to design a system to optimize the efficiency of the overall chip. A 2X software setting became perceptively equivalent to 4X. Strangely, the X mainstream t480 RV had 6 vertex shaders while only being equipped with 2 quads.

R48 making heavy use of normal mapping could gain a significant speed boost from the savings in fillrate and bandwidth by using 3Dc. InATI had a large number of dies that “worked” but not well enough to be used on the X or X series cards. R basically takes a “wider is better” approach to the previous architecture, with some small tweaks thrown in to enhance it in various ways.