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Encyclopedia > Radeon

ATI Radeon is a brand of graphics processing units (GPU) that has been manufactured by ATI Technologies since 2000 and the successor to their Rage line. There are four different groups, which can be differentiated by the DirectX generation they support. More specific distinctions can also be followed, such as the HyperZ version, the number of pixel pipelines, and of course, the memory and processor clock speeds. Image File history File links No higher resolution available. ... “GPU” redirects here. ... “ATI” redirects here. ... Year 2000 (MM) was a leap year starting on Saturday (link will display full 2000 Gregorian calendar). ... The ATI Rage is a series of graphics chipsets offering 2D GUI acceleration, video acceleration, and 3D acceleration. ... Microsoft DirectX is a collection of application programming interfaces for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. ... HyperZ is the name of a set of computer graphics processing techniques used by ATI Technologies in their Radeon video cards. ... Instruction scheduling on the Intel Pentium 4. ... This article does not cite any references or sources. ... CPU redirects here. ... In synchronous digital electronics, such as most computers, a clock signal is a signal used to coordinate the actions of two or more circuits. ...

Contents

ATI Radeon Processor Generations

Series Graphics APIs support Notes
DirectX OpenGL
R100 DirectX 7.0 OpenGL 1.3 Was ATI's first graphics processor to be fully DirectX 7 compliant. It was first introduced in 2000. R100 brought with it large gains in bandwidth and fill-rate efficiency through the new HyperZ technology. Initial models included Radeon SDR, DDR and 7000/VE. The final release was the Radeon 7500.
R200 DirectX 8.1 OpenGL 1.4 ATI's second generation Radeon. This design included ATI's first programmable shader architecture and introduced pixel shader 1.4, the most advanced shader model prior to 2.0. This line includes Radeon 8500 - 9250.
R300 DirectX 9.0 OpenGL 2.0 ATI's breakthrough DirectX 9.0 technology, released in 2002, made ATI the technology leader for several years with its industry-leading pixel shader 2.0 performance. Included in this generation are Radeon 9500 - 9800, X300 - X600, X1050.
R420 DirectX 9.0b While heavily based upon the previous generation, this line included extensions to the Shader Model 2 feature-set. Shader Model 2b, the specification ATI and Microsoft defined with this generation, offered somewhat more shader program flexibility. This generation's technology is used in Radeon X700 - X850.
R520 DirectX 9.0c ATI's DirectX 9.0c series of graphics cards, with complete Shader Model 3.0 support. Launched in October 2005, this series brought a number of enhancements including the floating point render target technology necessary for HDR rendering with anti-aliasing. Cards released include X1300 - X1950.
R600 DirectX 10.0/
DirectX 10.1 (RV670)
AMD's first series of ATI Radeon GPUs supporting the Direct3D 10.0 specification and the company's second graphics solution to employ unified shader technology. Releases of this platform include the HD 2400, HD 2600 and HD 2900. There are also products supporting DirectX 10.1, known as the HD 3800 series.
R700  ?  ? An upcoming series of GPUs after the release of R600. Not much information was known as of today.

API and Api redirect here. ... Development Radeon 256 The first-generation Radeon GPU was launched in 2000, and was initially code-named Rage 6, (later R100), as the successor to ATIs aging Rage 128 which was unable to compete with the GeForce 256. ... OpenGL (Open Graphics Library) is a standard specification defining a cross-language cross-platform API for writing applications that produce 2D and 3D computer graphics. ... Microsoft DirectX is a collection of application programming interfaces for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. ... HyperZ is the name of a set of computer graphics processing techniques used by ATI Technologies in their Radeon video cards. ... The Radeon 8500 (a. ... The Radeon R300 (introduced August 2002) is the third generation of Radeon graphics chips from ATI Technologies. ... The Radeon R420 core from ATI Technologies was the companys basis for its 3rd-generation DirectX 9. ... ATIs R520 core (codenamed Fudo) is the foundation for a line of DirectX 9. ... Shaders are a set of different technologies. ... High dynamic range rendering (HDRR or HDR Rendering), also known as high dynamic range lighting, is the rendering of 3D computer graphics scenes by using lighting calculations done in a larger dynamic range. ... In digital signal processing, anti-aliasing is the technique of minimizing the distortion artifacts known as aliasing when representing a high-resolution signal at a lower resolution. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... Direct3D is part of Microsofts DirectX API. Direct3D is only available for Microsofts various Windows operating systems (Windows 95 and above) and is the base for the graphics API on the Xbox and Xbox 360 console systems. ... The Radeon R700 is the engineering codename for an upcoming Graphics Processing Unit series which is in development by AMD, to be sold under the ATI brand. ...

Product naming scheme

Since ATI's first DirectX 9-class GPU, the company has followed a naming scheme that relates each product to a market segment.

  • 1 Stream Processors only applicable to Radeon HD 2000 series video cards.
Product Category Card Name
(* denotes wildcard)
Usual Suffixes Price range (USD) Shader amount (VS/PS/SPU)1 Memory Outputs Example products
Type Width
(bit)
Size (MiB)
Enthusiast/high-end **9**
**8**
XTX, XT,
XT PE, Pro,
GTO
>$150 75-100% GDDR3,
GDDR4
256-bit/
512-bit
512/1024 Dual DVI with
HDMI (HD 2000 dongle)
X800, X1950,
HD 2900
Mainstream **7**
**6**
**5**
Pro, SE, XT,
GTO, GT
$100-$150 37.5-75% DDR2,
GDDR3,
GDDR4
128-bit 128/256/512 D-Sub, DVI/
Dual DVI with
HDMI (HD 2000 dongle)
X700, X1600,
HD 2600
Budget/Value **4**
**3**
**2**
**1**
**0**
7x00, 9000, 9200, 9250
SE, HM <$99 25-50% DDR2,
GDDR3
64-bit 64/128
(HM: 768/1024)
D-Sub, DVI with
HDMI (HD 2000 Dongle)
X300, X1050,
X1400, HD 2400

Note: Suffix indicate different layers of performance. See ATI Video Card Suffixes. USD redirects here. ... Vertex and pixel (or fragment) shaders are shaders that run on a graphics card, executed once for every vertex or pixel in a specified 3D mesh. ... Vertex and pixel (or fragment) shaders are computer programs that run on a graphics card, executed once for every vertex or pixel in a specified 3D mesh. ... A relatively new, yet very successful paradigm to allow parallel processing at never-seen-before efficiency with minimal effort. ... BIT is an acronym for: Bannari amman Institute of Technology Bangalore Institute of Technology Beijing Institute of Technology Benzisothiazolinone Bilateral Investment Treaty Bhilai Institute of Technology - Durg Birla Institute of Technology - Mesra Battles in Time (Doctor Who magazine) BIT International College, formerly the Bohol Institute of Technology in Bohol, Philippines... A mebibyte (a contraction of mega binary byte) is a unit of information or computer storage, abbreviated MiB. 1 MiB = 220 bytes = 1,048,576 bytes = 1,024 kibibytes 1 MiB = 1024 (= 210) kibibytes (KiB), and 1024 MiB equal one gibibyte (GiB). ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... This article does not cite any references or sources. ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... The Radeon R420 core from ATI Technologies was the companys basis for its 3rd-generation DirectX 9. ... ATIs R520 core (codenamed Fudo) is the foundation for a line of DirectX 9. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... This article does not cite any references or sources. ... It has been suggested that DE-9 be merged into this article or section. ... For other meanings of DVI, please see DVI (disambiguation). ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... The Radeon R420 core from ATI Technologies was the companys basis for its 3rd-generation DirectX 9. ... ATIs R520 core (codenamed Fudo) is the foundation for a line of DirectX 9. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... HyperMemory is ATI Technologies method of using a PCs main system RAM as part of or all of the video cards framebuffer memory on their line of Radeon video cards and motherboard chipsets. ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... HyperMemory is ATI Technologies method of using a PCs main system RAM as part of or all of the video cards framebuffer memory on their line of Radeon video cards and motherboard chipsets. ... It has been suggested that DE-9 be merged into this article or section. ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... The Radeon R300 (introduced August 2002) is the third generation of Radeon graphics chips from ATI Technologies. ... The Radeon R300 (introduced August 2002) is the third generation of Radeon graphics chips from ATI Technologies. ... ATIs R520 core (codenamed Fudo) is the foundation for a line of DirectX 9. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... This article or section does not cite any references or sources. ...


Reports has that since the release of the Radeon HD 3000 series products, previous PRO, XT, GT, and XTX suffixes will be elimiated, products will be differentiated by changing the last two digits of the product model number (for instance, HD 3850 and HD 3870, giving the impression that the HD 3870 model having higher performance than HD 3850) [1]. Similar changes to the IGP naming were spotted as well, for the AMD M690T chipset with side-port memory, the IGP is named "Radeon X1270", while for the AMD 690G chipset, the IGP is named "Radeon X1250", as for AMD 690V chipset, the IGP is clocked lower and having less functions and thus named "Radeon X1200". The changes to the naming scheme of video cards starting from the Radeon HD 3800 series are shown below: The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... This article or section does not cite any references or sources. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ...

Product Category Model number range (steps of 10) Price range (USD) Shader amount
(SPU)1
Memory Outputs Example products
Type Width
(bit)
Size (MiB)
Enthusiast
/high-end
800-990 >$150 75-100% GDDR3,
GDDR4
256-bit/
512-bit
512/1024 Dual DVI with
HDMI/DP (dongle)
HD 3870, HD 3850
Mainstream 400-790 $100-$150 37.5-75% DDR2,
GDDR3,
GDDR4
128-bit 128/256/512 D-Sub, DVI/
Dual DVI with
HDMI/DP (dongle)
 ?
Budget/Value 000-390 <$99 25-50% DDR2,
GDDR3
64-bit 64/128
(HM: 768/1024)
D-Sub, DVI with
HDMI/DP
(Dongle/IGP Onboard)
X1270, X1250, X1200 (IGP)
  • 1 Stream Processors only applicable to Direct 10-class video components (Radeon HD 2000/3000 series).

USD redirects here. ... A relatively new, yet very successful paradigm to allow parallel processing at never-seen-before efficiency with minimal effort. ... BIT is an acronym for: Bannari amman Institute of Technology Bangalore Institute of Technology Beijing Institute of Technology Benzisothiazolinone Bilateral Investment Treaty Bhilai Institute of Technology - Durg Birla Institute of Technology - Mesra Battles in Time (Doctor Who magazine) BIT International College, formerly the Bohol Institute of Technology in Bohol, Philippines... A mebibyte (a contraction of mega binary byte) is a unit of information or computer storage, abbreviated MiB. 1 MiB = 220 bytes = 1,048,576 bytes = 1,024 kibibytes 1 MiB = 1024 (= 210) kibibytes (KiB), and 1024 MiB equal one gibibyte (GiB). ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... This article does not cite any references or sources. ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... DisplayPort is a new digital display interface standard (approved May 2006, current version 1. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... The graphics processing unit (GPU) codenamed R600 is the foundation of the Radeon HD 2000 series and the FireGL 2007 series video cards developed by ATI Technologies. ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... This article does not cite any references or sources. ... It has been suggested that DE-9 be merged into this article or section. ... For other meanings of DVI, please see DVI (disambiguation). ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... DisplayPort is a new digital display interface standard (approved May 2006, current version 1. ... GDDR3 (Graphics Double Data Rate, version 3) is a graphics card-specific memory technology, designed by ATI Technologies. ... HyperMemory is ATI Technologies method of using a PCs main system RAM as part of or all of the video cards framebuffer memory on their line of Radeon video cards and motherboard chipsets. ... It has been suggested that DE-9 be merged into this article or section. ... For other meanings of DVI, please see DVI (disambiguation). ... The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ... DisplayPort is a new digital display interface standard (approved May 2006, current version 1. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ... The AMD 690 chipset series or AMD 690 series chipset by AMD is a chipset family developed and manufactured by AMD subsidiary ATI for the AMD platform, focusing on both desktop and mobile computing markets. ...

Drivers

Windows

The ATI Radeon graphics driver package for Windows operating system is called ATI Catalyst. The Catalyst software was instituted after the release of the Radeon 8500. This new driver development paradigm at ATI promised monthly driver updates which included performance enhancements, bug fixes, and new features. As of 2006, the Catalyst driver package typically included ATI Catalyst Control Center; an interface for manipulating many of the hardware's functions within Windows XP, such as 3D settings, monitor controls, video options, among other things. It also offered a small 3D preview, allowing the user to see how changes to the graphics settings affected the quality of the rendered image. The old control panel interface (within Windows' Display Properties) was previously a fall-back option, but that has been discontinued as of Catalyst 5.13. The Catalyst package can be downloaded in pieces as well, for non-broadband users. For example, the display driver can be downloaded alone, separated from the Catalyst Control Center and WDM VIVO drivers. The day that Microsoft Vista launched, ATI provided a Microsoft certified Catalyst driver referenced as Catalyst 7.1 Image File history File links No higher resolution available. ... “Windows” redirects here. ...


There are also unofficial drivers available such as the Omega drivers or DNA drivers, claiming to boost performance when compared to the official Catalyst. These drivers typically consist of mixtures of various driver file versions with some registry variables altered and potentially offer superior performance or quality. They are, of course, unsupported, and as such are not guaranteed to function correctly or quantitatively improve functionality (placebo effect). Some of them also provide modified or patched DLL files for hardware enthusiasts to modify their cards (as 9500non-pro and 9500Pro use the same chips, and 9800SE and 9800 use the same chips, some of them can be modified by activating all 8 pixel pipelines). Modified ATI and nVidia graphics cards drivers. ... The Windows registry is a directory which stores settings and options for the operating system for Microsoft Windows 32-bit versions, 64-bit versions and Windows Mobile. ... A scale for measuring mass A quantitative property is one that exists in a range of magnitudes, and can therefore be measured. ... It has been suggested that this article or section be merged into Placebo. ... Dynamic-link library (also written without the hyphen), or DLL, is Microsofts implementation of the shared library concept in the Microsoft Windows and OS/2 operating systems. ...


Windows XP Professional x64

ATI has yet to produce mobile 64 bit drivers for the Windows XP Professional x64 Edition operating system. This may be due to a number of factors. One factor is that most people use the 32-bit version of Windows XP, due not only to video card driver issues, but other driver compatibility issues as well. Nonetheless, it is possible to obtain a proper driver for this type of setup. In order to do so, one requires the use of an unsupported application: ModtoolV4 which can be found here. ModtoolV4 is a 3rd party utility which modifies recent desktop Radeon drivers to work with Mobility Radeon graphics cards (works with Catalyst Control Centre 7.3 - not working with 7.4). Thus, one can download the 64-bit Radeon Catalyst Control Center from ATI's website - running the install program and cancelling the operation is followed by running ModtoolV4 and selecting the folder where the Catalyst Control Center and driver were extracted. After execution, the setup for the driver and Catalyst Control Center occurs automatically. For the 64-bit Windows XP for Itanium systems, see Windows XP 64-bit Edition. ...


Macintosh

ATI used to only offer driver updates for their retail Mac video cards, but now also offer drivers for all ATI Mac products, including the GPUs in Apple's portable lines. Apple also includes ATI driver updates whenever they release a new OS update. ATI provides a preference panel for use in Mac OS X called ATI Displays which can be used both with retail and OEM versions of their cards. Though it gives more control over advanced features of the graphics chipset, ATI Displays has limited functionality compared to their Catalyst for Windows product. As Microsoft does not license DirectX for other OS platforms, Mac OS X uses OpenGL exclusively, though in the past with OS 9, Apple used the now-defunct RAVE API. Mac OS X (IPA: ) is a line of graphical operating systems developed, marketed, and sold by Apple Inc. ... Microsoft DirectX is a collection of application programming interfaces for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. ... Mac OS X (IPA: ) is a line of graphical operating systems developed, marketed, and sold by Apple Inc. ... OpenGL (Open Graphics Library) is a standard specification defining a cross-language cross-platform API for writing applications that produce 2D and 3D computer graphics. ...


Linux

Initially, ATI did not produce Radeon drivers for Linux, instead giving hardware specifications and documentation to Direct Rendering Infrastructure (DRI) developers under various non-disclosure agreements. In mid 2004, however, ATI started to support Linux (XFree86, X.Org), hiring a new Linux driver team to produce fglrx. Their new proprietary Linux drivers, instead of being a port of the Catalyst drivers, were based on the Linux drivers for the FireGL (the FireGL drivers worked with Radeons before, but didn't officially support them), a card geared towards graphics producers, not gamers; though the display drivers part is now based on the same sources as the ones from Windows Catalyst since version 4.x in late 2004. The proprietary Linux drivers don't support the R100 chips (Radeon 7000-7500). This article is about operating systems that use the Linux kernel. ... In computing, the Direct Rendering Infrastructure (DRI) is an interface used in the X Window System to securely allow user applications to access the video hardware without requiring data to be passed (slowly) through the X Server. ... A non-disclosure agreement (NDA), also called a confidential disclosure agreement (CDA), confidentiality agreement or secrecy agreement, is a legal contract between at least two parties which outlines confidential materials or knowledge the parties wish to share with one another for certain purposes, but wish to restrict from generalized use. ... This article is about operating systems that use the Linux kernel. ... XFree86 is an implementation of the X Window System . ... The X.Org logo The X.Org Foundation is the consortium holding the stewardship for the development of the X Window System. ... fglrx (possibly an abbreviation for FireGL and Radeon X driver) is the name of the Linux display driver used for ATI Radeon and ATI FireGL family video adapters. ... It has been suggested that closed source be merged into this article or section. ... The FireGL range of graphics cards is a series fabricated by ATI for use with CAD (Computer Aided Design) and DCC (Digital Content Creation) programs, usually found in workstations. ...


The frequency of driver updates increased in late 2004, releasing Linux drivers every 2 months, half as often as their Windows counterparts. Then since late 2005 this has been increased to monthly releases, inline with the Windows CATALYST releases. On 12 April 2006, ATI released binary drivers for the ATI R5x0 chips (x1300/x1600/x1800 cards), approximately six months after first releasing these cards.


However the ATI Linux graphics driver suffers from bad performance: 2D benchmarks show that ATI cards using these drivers are two orders of magnitude slower than competing cards in basic tasks.[1] More information about the problems can be found on the Fglrx driver page. As of the 8.25.18 proprietary Linux driver release R200 support is completely broken. There has been no comment from ATI on the problem.[2] fglrx (possibly an abbreviation for FireGL and Radeon X driver) is the name of the Linux display driver used for ATI Radeon and ATI FireGL family video adapters. ...


The efforts to provide free drivers for these cards continue, though. While the R100 and R200-series chipset drivers were written using specifications provided by ATI (r200 driver), the R300 and R400 series hardware acceleration was written through reverse engineering (r300 driver) the methods used by ATI's proprietary driver. The reverse-engineered code is now in X.Org and Mesa, bringing experimental support for some of the current Radeon cards. Clockwise from top: The logo of the GNU Project, the Linux kernel mascot Tux, and the BSD Daemon Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only... The X.Org logo The X.Org Foundation is the consortium holding the stewardship for the development of the X Window System. ... In computer graphics, Mesa is an open source software implementation of OpenGL, licensed under the MIT License. ...


All r3xx cards and all r4xx excluding the Xpress integrated chips should be supported by the new experimental r300 driver; as of June 2007, there is experimental support for the Xpress chips in the DRI and Mesa git repositories.


There are a number of unofficial community websites for bug tracking[3] and a wiki[4].


FreeBSD

FreeBSD systems have the same open-source support for Radeon hardware as Linux, including 2D and 3D acceleration for Radeon R100, R200, and R300-series chipsets. The R300 support, as with Linux, remains experimental due to being reverse-engineered from ATI's proprietary drivers. FreeBSD is a Unix-like free operating system descended from AT&T UNIX via the Berkeley Software Distribution (BSD) branch through the 386BSD and 4. ...


ATI does not support its proprietary fglrx driver on FreeBSD, it has been partly ported by a third party as of January 2007. This is in contrast to its main rival, NVIDIA, which has periodically released its proprietary driver for FreeBSD since November 2002. In the meantime the release is similar to Linux.


BeOS

Although ATI does not provide its own drivers for BeOS, it provides hardware and technical documentation to the Haiku Project who provide drivers with full 2D and video in/out support. They are the sole graphics manufacturer in any way still supporting BeOS. BeOS is an operating system for personal computers which began development by Be Inc. ... The tone or style of this article or section may not be appropriate for Wikipedia. ...


Open source drivers

In September 12, 2007, AMD released 2D specs for the RV630 (Radeon HD 2600 PRO and Radeon HD 2600 XT) and M56 (Radeon Mobility X1600) chips for open source driver development, for its strategic open source driver development initiative [2], with more documentation likely to follow in the near future, as well as baseline open source drivers. [3] All specs are available without NDA. AMD collaborates with Novell to build new free driver (called RadeonHD) based on these specifications. Currently (September 2007) driver is very experimental. Its development can be tracked on git repository at Freedesktop.org website. [4] is the 255th day of the year (256th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... A non-disclosure agreement (NDA), also called a confidential disclosure agreement (CDA), confidentiality agreement or secrecy agreement, is a legal contract between at least two parties which outlines confidential materials or knowledge the parties wish to share with one another for certain purposes, but wish to restrict from generalized use. ... Novell Inc. ... Git is a distributed revision control / software configuration management project created by Linus Torvalds to manage software development of the Linux kernel. ... freedesktop. ...


Pulse-Width Modulation (fan control)

Unlike NVIDIA, ATI implements PWM (pulse-width modulation) on some of their newer graphics cards to control fan speeds. Some computer motherboards use this technology for fan control, as well. PWM is used to reduce the total amount of power delivered to a load without losses normally incurred when a power source is limited by resistive means. As the name of the technology says, PWM delivers power through pulses instead of resistance-based constant voltage. However, this can create a clicking sound on the video card when the fan is at certain speeds. Some users see this as hindering the ability to build a quiet computer system. In recent releases of products, digital PWM was used. An example of PWM: the supply voltage (blue) modulated as a series of pulses results in a sine-like flux density waveform (red) in a magnetic circuit of electromagnetic actuator. ... An example of PWM: the supply voltage (blue) modulated as a series of pulses results in a sine-like flux density waveform (red) in a magnetic circuit of electromagnetic actuator. ...


See also

This page contains general information about ATIs GPUs and video cards based on official ATI specifications in table form. ... The ATI Rage is a series of graphics chipsets offering 2D GUI acceleration, video acceleration, and 3D acceleration. ...

References

  1. ^ RV670 is Radeon HD 3800 Series. VR-Zone (October 17, 2007).
  2. ^ AMD Press release, retrieved September 13, 2007
  3. ^ AMD Releases 900+ Pages Of GPU Specifications
  4. ^ http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-radeonhd;a=summary
  • Rage3d thread

External links


  Results from FactBites:
 
Radeon - Wikipedia, the free encyclopedia (1470 words)
Radeon is a brand of graphics processing units (GPU) that has been manufactured by ATI Technologies since 2000 and the successor to their Rage line.
After testing the 130 nm Low-k waters with Radeon 9600XT, ATI made use of this advanced fabrication process for R420 in May 2004.
With the 2.6.17 kernel, some cards from the r300 driver were added to the radeon driver (http://wiki.kernelnewbies.org/Linux_2_6_17).
Radeon (1298 words)
Radeon® graphics cards (Radeon® 64MB DDR with video-input and video-output, Radeon® 64MB Radeon 32MB DDR and Radeon® 32MB SDR) are ATI's high performance graphics solution for performance oriented consumer and commercial platforms.
Radeon® is capable of decoding all of the HDTV formats with reduced CPU utilization and of directly driving both analog and digital high definition displays.
When Radeon® is used with the appropriate DTV tuner and DTV demodulator software, the user will be able to view HDTV on their monitor or TV.
  More results at FactBites »

 
 

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