129

SDTV

SDTV is an acronym for “Standard Definition Television” that identifies lower resolution systems when compared to High Definition Television (HDTV) systems. SDTV systems use the same 4:3 aspect ratio and 480 scan lines to produce a picture as regular analog television sets, but digital decoding enhanced of the signal, displaying a sharper and crisper picture. SDTV broadcasts are either interlaced (480i) or use progressive scan (480p), the latter method providing the best overall image quality.

SECAM

An analog color video signal that originated in France, and is used in many other countries, including (but not limited to) much of Eastern Europe, parts of the Middle East and Asia. Like the PAL video standard, SECAM also draws a total of 625 vertical interlaced frames of video at a refresh rate of 25Hz, but uses a fundamentally different way of encoding its colors. The name is an acronym for “Séquential Couleur avec Mémoire,” which is French for “sequential color with memory.”

Shadow Mask

In CRT monitors, the shadow mask is a metal plate full of tiny holes that is attached to the inside of the glass screen. It focuses the beams from the electron guns at the back of the CRT. The distance between these holes is called the dot pitch.

SmartShader™ HD

SmartShader™ HD contains advanced vertex and pixel-shading capabilities. A shader is a small program that runs on the GPU and describes how an image should be rendered. Vertex shaders manipulate the individual polygons that make up 3D objects, and pixel shaders operate on the individual pixels that fill in these polygons to create a visible image. SmartShader™ HD is designed to alleviate the resource constraints of earlier shader hardware, paving the way for more complex, detailed, and realistic shader effects in applications requiring high-performance 3D rendering.

SmoothVision™ HD

SmoothVision™ HD incorporates improved anti-aliasing, anisotropic filtering and 3Dc™ compression features designed to further enhance

Page 136 Page 138
Page 137
Image 137
ATI Technologies X1600 manual Shadow Mask, SmartShader HD, SmoothVision HD
Page 136 Page 138

X1600 specifications

The ATI Technologies X1600 is a notable entry in the realm of graphics cards, launched during the mid-2000s as part of the company's Radeon X1000 series. Renowned for its performance and value, the X1600 was designed to cater to gamers and multimedia enthusiasts looking for an affordable yet capable graphics solution.

One of the hallmark features of the X1600 is its implementation of the unified shader architecture. This innovative architecture allows the GPU to allocate processing power dynamically among vertex and pixel shaders, enhancing visual effects and performance in modern games of the time. Its support for Shader Model 3.0 enabled more complex pixel shaders and realistic characters and environments, providing a richer gaming experience.

The X1600 series includes several variants, with the X1600 Pro and X1600 XT being the most prominent. The X1600 XT is equipped with 12 pixel shader processors and 5 vertex shader processors, while the X1600 Pro features a slightly less potent 12 pixel and 4 vertex shading pipeline setup. This categorization allowed users to select a model that best suited their performance needs and budget constraints.

In terms of memory, the X1600 typically supports GDDR2 and GDDR3 types, providing bandwidth essential for high-resolution textures and demanding applications. With options for 256 MB to 512 MB of video memory, the X1600 can handle a variety of gaming scenarios while maintaining decent frame rates.

The X1600 introduces several technologies to enhance user experience. It includes support for High Dynamic Range (HDR) rendering, which brings a broader color range and more realistic lighting effects to games. Additionally, it supports Avivo, ATI's multimedia technology for improved video playback and processing capabilities, enhancing the experience for users interested in home theater systems.

Another significant characteristic of the X1600 is its compatibility with the PCI Express interface, allowing for greater bandwidth between the graphics card and the motherboard. This ensures that the card takes full advantage of modern computing setups, making it a versatile option for many builders and upgraders.

In summary, the ATI Technologies X1600 stands out in the mid-range graphics market due to its unified shader architecture, support for advanced shading technologies, and robust memory options. Its balance of performance and price made it a favored choice during its release, helping to shape the evolution of graphics technology in subsequent generations.
Top Page Image Contents