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GeForce 3 series

nokia 3 series, geforce 3 series

The GeForce 3 NV20 is the third generation of NVIDIA's GeForce graphics processing units Introduced in March 2001citation needed, it advanced the GeForce architecture by adding programmable pixel and vertex shaders, multisample anti-aliasing and improved the overall efficiency of the rendering process

The GeForce 3 was unveiled during the 2001 Macworld conference and powered realtime demos of Pixar's Junior Lamp and id software's Doom 3 Apple would later announce launch rights for its new line of computers

The GeForce 3 family comprises 3 consumer models: the GeForce 3, the GeForce 3 Ti200, and the GeForce 3 Ti500 A separate professional version, with a feature-set tailored for computer aided design, was sold as the Quadro DCC A derivative of the GeForce 3, known as the NV2A, is used in the Microsoft Xbox game console

Contents

  • 1 Architecture
  • 2 Performance
  • 3 Product positioning
  • 4 Specifications
  • 5 Discontinued support
  • 6 Successor
    • 61 Final drivers include
  • 7 See also
  • 8 References
  • 9 External links

Architectureedit

GeForce3 Ti 200 GPU

Introduced three months after NVIDIA acquired 3dfx and marketed as the nFinite FX Engine, the GeForce 3 was the first Microsoft Direct3D 80 compliant 3D-card Its programmable shader architecture enabled applications to execute custom visual effects programs in Microsoft Shader language 11 For legacy Direct3D 70 applications the fixed-function hardware from GeForce 2 is included, as the single vertex shader was not fast enough to emulate it yet1 With respect to pure pixel and texel throughput, the GeForce 3 has four pixel pipelines which each can sample two textures per clock This is the same configuration as GeForce 2, excluding the slower GeForce 2 MX line

To take better advantage of available memory performance, the GeForce 3 has a memory subsystem dubbed Lightspeed Memory Architecture LMA This is composed of several mechanisms that reduce overdraw, conserve memory bandwidth by compressing the z-buffer depth buffer and better manage interaction with the DRAM

Other architectural changes include improvements to anti-aliasing functionality Previous GeForce chips could perform only super-sampled anti-aliasing SSAA, a demanding process that renders the image at a large size internally and then scales it down to the end output resolution GeForce 3 adds multi-sampling anti-aliasing MSAA and Quincunx anti-aliasing methods, both of which perform significantly better than super-sampling anti-aliasing at the expense of quality With multi-sampling, the render output units super-sample only the Z buffers and stencil buffers, and using that information get greater geometry detail needed to determine if a pixel covers more than one polygonal object This saves the pixel/fragment shader from having to render multiple fragments for pixels where the same object covers all of the same sub-pixels in a pixel This method fails with texture maps which have varying transparency eg a texture map that represents a chain link fence Quincunx anti-aliasing is a blur filter that shifts the rendered image a half-pixel up and a half-pixel left in order to create sub-pixels which are then averaged together in a diagonal cross pattern, destroying both jagged edges but also some overall image detail Finally, the GeForce 3's texture sampling units were upgraded to support 8-tap anisotropic filtering, compared to the previous limit of 2-tap with GeForce 2 With 8-tap anisotropic filtering enabled, distant textures can be noticeably sharper

Performanceedit

The GeForce 3 GPU NV20 has the same theoretical pixel and texel throughput per clock as the GeForce 2 NV15 GeForce 2 Ultra is clocked 25% faster than the original GeForce 3 and 43% faster than the Ti200; this means that in select instances, like Direct3D 7 T&L benchmarks, the GeForce 2 Ultra and sometimes even GTS can outperform the GeForce 3 and Ti200, because the newer GPUs use the same fixed-function T&L unit, but are clocked lower2 The GeForce 2 Ultra also has considerable raw memory bandwidth available to it, only matched by the GeForce 3 Ti500 However, when comparing anti-aliasing performance the GeForce 3 is clearly superior because of its MSAA support and memory bandwidth/fillrate management efficiency

When comparing the shading capabilities to the Radeon 8500, reviewers noted superior precision with the ATi card3

Product positioningedit

NVIDIA refreshed the lineup in October 2001 with the release of the GeForce 3 Ti200 and Ti500 This coincided with ATI's releases of the Radeon 8500 and Radeon 7500 The Ti500 has higher core and memory clocks 240 MHz core/250 MHz RAM than the original GeForce 3 200 MHz/230 MHz, and generally matches the Radeon 8500 The Ti200 was the slowest, and lowest-priced GeForce3 release It is clocked lower 175 MHz/200 MHz yet it surpasses the Radeon 7500 in speed and feature set besides dual-monitor implementation

The original GeForce3 was only released in 64 MiB configurations, while the Ti200 and Ti500 were also released as 128 MiB versions

Specificationsedit

Main article: Comparison of Nvidia graphics processing units

Discontinued supportedit

Nvidia has ceased driver support for GeForce 3 series

Successoredit

The GeForce 4 Series Non-MX, introduced in April 2002, was a revision of the GeForce 3 architecture The budget variant, dubbed the GeForce 4 MX, was closer in terms of design to the GeForce 2

NVIDIA GeForce3 Ti 500

Final drivers includeedit

  • Windows 9x & Windows Me: 8198 released on December 21, 2005; Download;
Product Support List Windows 95/98/Me – 8198
  • Windows 2000, 32-bit Windows XP & Media Center Edition: 9371 released on November 2, 2006; Download

Despite claims in the documentation that 9424 supports the Geforce 3 series, it does not

Products supported list also on this page

Windows 95/98/Me Driver Archive
Windows XP/2000 Driver Archive

See alsoedit

  • Graphics card
  • Graphics processing unit

Referencesedit

  1. ^ https://parojgithubio/gltut/History%20Radeon8500html
  2. ^ https://techreportcom/review/2515/nvidia-geforce3-graphics-processor/11
  3. ^ https://techreportcom/review/3266/ati-radeon-8500-off-the-beaten-path/5

External linksedit

  • Nvidia: GeForce3 - The Infinite Effects GPU
  • ForceWare 8198 drivers, Final Windows 9x/ME driver release
  • ForceWare 9371 drivers, Final Windows XP driver release
  • Anandtech: Nvidia GeForce3
  • Anandtech: Nvidia's Fall Product Line: GeForce3 Titanium
  • techPowerUp! GPU Database

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