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GeForce2 MX

GeForce 2 Series
GeForce2 logo
Release date 2000
Codename NV11, NV15, NV16
Models GeForce MX Series
  • GeForce GTS Series
  • GeForce Pro Series
  • GeForce Ti Series
  • GeForce Ultra Series
Cards
Entry-level MX
Mid-range GTS, Pro
High-end Ti, Ultra
API support
Direct3D Direct3D 7.0
OpenGL OpenGL 1.3 (T&L)
History
Predecessor GeForce 256
Successor GeForce 3 series


The GeForce2 (NV15) is the second generation of NVIDIA's GeForce graphics processing units. Introduced in early 2000, it is the successor to the GeForce 256.

The GeForce 2 family comprised a number of models: GeForce 2 GTS, GeForce 2 Pro, GeForce 2 Ultra, GeForce 2 Ti, GeForce 2 Go and the GeForce 2 MX series. In addition, the GeForce 2 architecture is used for the Quadro series on the Quadro 2 Pro, 2 MXR, and 2 EX cards with special drivers meant to accelerate computer-aided design applications.

The GeForce 2 architecture is similar to the previous GeForce 256 line but with various improvements. Compared to the 220 nm GeForce 256, GeForce 2 is built on a 180 nm manufacturing process, making the silicon more dense and allowing for more transistors and a higher clock speed. The most significant change for 3D acceleration is the addition of a second texture mapping unit to each of the four pixel pipelines. Some say the second TMU was there in the original Geforce NSR (NVIDIA Shading Rasterizer) but dual-texturing was disabled due to a hardware bug; NSR's unique ability to do single-cycle trilinear texture filtering supports this suggestion. This doubles the texture fillrate per clock compared to the previous generation and is the reasoning behind the GeForce 2 GTS's naming suffix: GigaTexel Shader (GTS). The GeForce 2 also formally introduces the NSR (Nvidia Shading Rasterizer), a primitive type of programmable pixel pipeline that is somewhat similar to later pixel shaders. This functionality is also present in GeForce 256 but was unpublicized. Another hardware enhancement is an upgraded video processing pipeline, called HDVP (high definition video processor). HDVP supports motion video playback at HDTV-resolutions (MP@HL).

In 3D benchmarks and gaming applications, the GeForce 2 GTS outperforms its predecessor by up to 40%. In OpenGL games (such as Quake III), the card outperforms the ATI Radeon DDR and 3dfx Voodoo 5 5500 cards in both 16 bpp and 32 bpp display modes. However, in Direct3D games running 32 bpp, the Radeon DDR is sometimes able to take the lead.


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Wikipedia

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