Radeon R520

The Radeon X1000 series is a series of desktop graphics chips from AMD (formerly ATI Technologies ), and successor to the ATI Radeon X series. This makes it the fifth -generation GPUs with the name ATI Radeon. It was replaced by the Radeon HD 2000 series.

• 3.1 Performance

GPUs

Quads

The graphics chips used consist of so-called " quads ". Thus the number of rendering pipelines used and the associated pixel shader is mainly characterized, but also the number of VPUs depends. Only the number of rendering pipelines per quad is noted within the Radeon X1 series with exactly four pieces, with the number of other units there have been developments. Thus, in the graphics processors with a code number of 520 and smaller tend to be less pixel shader per quad available ( only four ), while there are at processors with higher code numbers twelve. The number of VPU is, however, decreased with newer versions.

GPUs

Within the Radeon X1 series different GPUs are used, which differ in terms of manufacturing technology and 3D capabilities. With the exception of the RV370 graphics processors dominate all 9.0c Pixel Shader 3.0 and DirectX.

Naming

All graphics chips are identified by a five-digit letter - number combination, which generally begins with a " X1" ( for Radeon X1000 series). The second digit then divides the family into different market segments. The third and fourth digits are used to further diversification. Furthermore, these models are categorized into different variants. These are marked with an appropriate symbol behind the model number, which leads to a very large total variety of model names.

Distribution:

• X10xx / X13xx / X15xx: low-cost
• X16xx: Mainstream
• X18xx / X19xx: High- End

Abbreviation:

• GT - budget version of a chip with disabled quads
• [ no suffix ] - "Standard " version, the weakest model in the low-end segment
• Pro - budget version of a chip, stronger than the "standard" version
• GTO - disabled chip in the high-end segment, a quad, more powerful Pro version
• XL - More powerful chip in the high-end segment, all quads are activated less powerful XT version
• XT - More powerful chip in all segments, all quads are activated
• XTX - The most powerful Einkernchip in the high-end segment
• Pro Dual - model with two graphics chips on a map (only in high-end segment)

Other prefixes such as "RX ", " GTO2 ", " XXL ", " Ultimate ", " IceQ ", " Silentpipe " or " Performance Edition " are not official designations of AMD (formerly ATI), but marketing name individual graphics cards manufacturers with which to special characteristics should be noted.

Model data

Notes:

• The specified clock rates are the recommended or imposed by AMD. However, is the final determination of the clock rates in the hands of the respective graphics cards manufacturers. Therefore, it is quite possible that there are graphics cards models or will be having different clock speeds.
• Also, it is the responsibility of manufacturers, whether or not the final graphics card has a PCIe or AGP connector, because GPUs with native PCIe interface can be used by means of a bridge chip for AGP graphics cards.

Performance

For each model, the following theoretical power data:

Folding @ home

GPUs ATI Radeon X1600, X1800 and X1900 series could also be used for computing tasks of the project Folding @ home and they exceeded the performance then current x86 processors by far. Beginning of June 2008 has been set, however, this DirectX -based client; the current version now uses the CAL interface, whereby the support for the ATI Radeon X1 series was omitted, but the HD 2000, HD 3000 and HD 4000 series are supported.

ATI Radeon X1000 IGP

Two integrated graphics units built in AMD 's own chipsets marketed under the name ATI Radeon Xpress X1200 and ATI Radeon Xpress X1250 and based on the ATI Radeon X700.