GeForce 2 Series

GeForce 2 Series
Nvidia GeForce 2
GeForce2 logo
Codename(s) NV11, NV15, NV16
Release date 2000
Entry-level GPU MX
Mid-range GPU GTS, Pro, Ti
High-end GPU Ultra
Direct3D and shader version Direct3D 7.0, T&L

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.

Contents

Architecture

GeForce2 Ultra GPU

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 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 NVIDIA Shading Rasterizer (NSR), 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).[1]

In 3D benchmarks and gaming applications, the GeForce 2 GTS outperforms its predecessor by up to 40%.[2] 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.[3]

The GeForce 2 architecture is quite memory bandwidth constrained.[4] The GPU wastes memory bandwidth and pixel fillrate due to unoptimized z-buffer usage, drawing of hidden surfaces, and a relatively inefficient RAM controller. The main competition for GeForce 2, the ATI Radeon DDR, has hardware functions (called HyperZ) that address these issues.[5] Because of the inefficient nature of the GeForce 2 GPUs, they could not approach their theoretical performance potential and the Radeon, even with its significantly less powerful 3D architecture, offered strong competition. The later NV17 revision of the NV11 design, used for the GeForce 4 MX, was more efficient; although the GeForce 4 MX 460 was a 2x2 pipeline design, it could outperform the GeForce 2 Ultra.

Releases

The first model to arrive after the original GeForce 2 GTS was the GeForce 2 Ultra and GeForce2 MX, launched in September 7, 2000[6]. In september 29, 2000 Nvidia shipping graphics driver which had 16 and 32 mb of video memory size.

Architecturally identical to the GTS, the Ultra simply has higher core and memory clock rates. The Ultra model actually outperforms the first GeForce 3 products in some cases, due to initial GeForce 3 cards having significantly lower fillrate. However, the Ultra loses its lead when anti-aliasing is enabled, because of the GeForce 3's new memory bandwidth/fillrate efficiency mechanisms; plus the GeForce 3 has a superior next-generation feature set with programmable vertex and pixel shaders for DirectX 8.0 games.

The GeForce 2 Pro, introduced shortly after the Ultra, was an alternative to the expensive top-line Ultra and is faster than the GTS.

In October 2001, the GeForce 2 Ti was positioned as a cheaper and less advanced alternative to the GeForce 3. Faster than the GTS and Pro but slower than the Ultra, the GeForce 2 Ti performed competitively against the Radeon 7500, although the 7500 had the advantage of dual-display support. This mid-range GeForce 2 release was replaced by the GeForce 4 MX series as the budget/performance choice in January 2002.

On their 2001 product web page, Nvidia initially placed the Ultra as a separate offering from the rest of the GeForce 2 lineup (GTS, Pro, Ti), however by late 2002 with the GeForce 2 considered a discontinued legacy product, the Ultra was included along the GTS, Pro, and Ti in the GeForce 2 information page.

GeForce 2 MX

GeForce 2 MX200 AGP

Since the previous GeForce 256 line shipped without a budget variant, the RIVA TNT2 series was left to fill the "low-end" role—albeit with a comparably obsolete feature set. In order to create a better low-end option, NVIDIA created the GeForce 2 MX series, which offered a set of standard features, specific to the entire GeForce 2 generation, limited only by categorical tier. The GeForce 2 MX cards had two 3D pixel pipelines removed and a reduced available memory bandwidth. The cards utilized either SDR SDRAM or DDR SDRAM with memory bus widths ranging from 32-bit to 128-bits, allowing circuit board cost to be varied. The MX series also provided dual-display support, something not found in the regular GeForce 256 and GeForce 2.

The prime competitors to the GeForce 2 MX series were ATI's Radeon VE / 7000 and Radeon SDR (which with the other R100's was later renamed as part of the 7200 series). The Radeon VE had the advantage of somewhat better dual-monitor display software, but it did not offer hardware T&L, an emerging 3D rendering feature of the day that was the major attraction of Direct3D 7. Further, the Radeon VE featured only a single rendering pipeline, causing it to produce a substantially lower fillrate than the GeForce 2 MX. The Radeon SDR, equipped with SDR SDRAM instead of DDR SDRAM found in more expensive brethren, was released some time later, and exhibited faster 32-bit 3D rendering than the GeForce 2 MX.[7] However, the Radeon SDR lacked multi-monitor support and debuted at a considerable higher price point than the GeForce 2 MX. 3dfx's Voodoo4 4500 arrived too late, as well as being too expensive, but too slow to compete with the GeForce 2 MX.

Members of the series include GeForce 2 MX, MX400, MX200, and MX100. The GPU was also used as an integrated graphics processor in the nForce chipset line and as a mobile graphics chip for notebooks called GeForce 2 Go.

Successor

The successor to the GeForce 2 (non-MX) line is the GeForce 3. The non-MX GeForce 2 line was reduced in price and saw the addition of the GeForce 2 Ti, in order to offer a mid-range alternative to the high-end GeForce 3 product.

Later, the entire GeForce 2 line was replaced with the GeForce 4 MX.

Models

Support

NVIDIA GeForce2 Ultra

Nvidia has ceased driver support for GeForce 2 series. Final Drivers Include

GeForce 2 GTS, GeForce 2 Pro, GeForce 2 Ti and GeForce 2 Ultra:

  • Windows 9x & Windows Me: 71.84 released on March 11, 2005; Download;
Product Support List Windows 95/98/Me – 71.84.
  • Windows 2000 & 32-bit Windows XP: 71.89 released on April 14, 2005; Download.
Product Support List Windows XP/2000 - 71.84.


GeForce 2 MX & MX x00 Series:

  • Windows 9x & Windows Me: 81.98 released on December 21, 2005; Download;
Product Support List Windows 95/98/Me – 81.98.
  • Windows 2000, 32-bit Windows XP & Media Center Edition: 93.71 released on November 2, 2006; Download.
(Products supported list also on this page)

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


Competing chipsets

See also

References

  1. ^ Lal Shimpi, Anand (April 26, 2000). "NVIDIA GeForce 2 GTS". Anandtech. pp. 2. http://www.anandtech.com/showdoc.aspx?i=1231&p=2. Retrieved 2009-07-02. 
  2. ^ Lal Shimpi, Anand (April 26, 2000). "NVIDIA GeForce 2 GTS". Anandtech. http://www.anandtech.com/showdoc.aspx?i=1231&p=10. Retrieved 2008-06-14. 
  3. ^ Witheiler, Matthew (July 17, 2000). "ATI Radeon 64MB DDR". Anandtech. http://www.anandtech.com/showdoc.aspx?i=1281. Retrieved 2008-06-14. 
  4. ^ Lal Shimpi, Anand (August 14, 2000). "NVIDIA GeForce 2 Ultra". Anandtech. http://www.anandtech.com/showdoc.aspx?i=1298&p=2. Retrieved 2008-06-14. 
  5. ^ Lal Shimpi, Anand (April 25, 2000). "ATI Radeon 256 Preview (HyperZ)". Anandtech. pp. 5. http://www.anandtech.com/showdoc.aspx?i=1230&p=5. Retrieved 2008-06-14. 
  6. ^ http://www.nvidia.com/object/IO_20010618_6038.html
  7. ^ FastSite (December 27, 2000). "ATI RADEON 32MB SDR Review". X-bit labs. http://www.xbitlabs.com/articles/video/display/ati-radeon-sdr.html. Retrieved 2008-06-14. 

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • GeForce 300 Series — Codename(s) GT215, GT216, GT218, G92b? Created in year 2009/2010 Entry level cards 310, 315, GT 320, GT 330 Mid range cards GT 340 …   Wikipedia

  • GeForce 6 Series — Nvidia GeForce 6 Series Codename(s) NV40, NV41, NV42, NV43, NV44, NV45, NV48 Release date April 2004 2005 Entry level GPU 6100 (IGP), 6150 (IGP), 6200, 6500 Mid range GPU 6600, 6700 …   Wikipedia

  • GeForce 7 Series — Nvidia GeForce 7 Series Codename(s) G70 (NV47), G71, G72, G73 Release date June 2005 2006 Entry level GPU 7025 (IGP), 7050 (IGP), 7100 (both integrated and discrete variants), 7150 (IGP), 7200, 7300, 7350 Mid range GPU 7500 (OEM), 7600, 7650… …   Wikipedia

  • GeForce 8 Series — NVIDIA GeForce 8 Series Codename(s) G80, G84, G86, G92, G98 Release date 2006 Entry level GPU 8100 (IGP), 8200 (IGP), 8300 (both integrated and discrete variants), 8400 Mid range GPU 8500, 8600 High end GPU 8800 …   Wikipedia

  • GeForce 9 Series — NVIDIA GeForce 9 Series Codename(s) G92a/b, G94a/b, G96a/b, G98 Release date 2008 Entry level GPU 9100 (IGP, OEM), 9200 (IGP, OEM), 9300GS/GT (IGP), 9300GE, 9400GS/GT (both integrated and discrete variants), 9500GS Mid range GPU 9500GT,… …   Wikipedia

  • GeForce 400 Series — Nvidia GeForce 400 Series Codename(s) GF100 / GF104 / GF106 / GF108 (Fermi) Release date April 12, 2010 Entry level GPU GT 430, GT 440 Mid range GPU GTS 450 High end GPU GTX 460, GTX 465, GTX 470, GTX 480 …   Wikipedia

  • GeForce FX Series — NVIDIA GeForce FX Series Codename(s) NV30, NV31, NV34, NV35, NV36, NV38 Release date 2003 Entry level GPU 5200, 5300, 5500 Mid range GPU 5600, 5700, 5750 High end GPU …   Wikipedia

  • GeForce 3 Series — NVIDIA GeForce 3 Series Codename(s) NV20 Release date 2001 Entry level GPU None Mid range GPU GeForce 3 Ti 200 High end GPU GeForce 3, Ti 500 Direct3D and shader version D3D 8.0, Pixel Shader 1.1, Vertex Shader 1.1 The GeForce 3 (NV20) is the… …   Wikipedia

  • GeForce 4 Series — Nvidia GeForce 4 Series Codename(s) NV17, NV18, NV19, NV25, NV28 Release date 2002 Entry level GPU MX Mid range GPU Ti 4200, Ti 4400 High end GPU Ti 4600, Ti 4800 Direct3D and shad …   Wikipedia

  • GeForce 200 Series — NvidiaGPU name = NVIDIA GeForce 200 Series codename = D10U 30, D10U 20 created = 2008 entry = none midrange = none highend = GTX 260, GTX 260 Core 216, GTX 280 d3dversion = D3D 10, Model 4 version = 177.23The GeForce 200 Series is the tenth… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”