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G does have partial support for the DVD video decoding process but it does not perform inverse discrete cosine transform IDCT or motion compensation in hardware the two most demanding steps of the process. Eventually a native OpenGL driver called “TurboGL” was released, but it was only designed to support several popular games of the time e. Boards shipped with dual analog VGA connectors. With regard to its hardware, G’s triangle setup engine, called the “Warp Engine” ironically, was somewhat slower than the counterparts aboard the competition’s cards. The G continually received official driver updates into

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G was known for being particularly dependent on the host system’s CPU for high 3D performance. Video capturing was possible but drivers are still based on VfW.

It was also equipped with a hardware transform and lighting unit capable of processing 20—30 million triangles per second. G’s 3D engine consists of 2 parallel pixel pipelines with 1 texture unit each, providing single-pass dual-texturing capability. Unfortunately, because of the identical g40 clock and due to lower memory bandwidth, G was slower than G in games.

Despite the feature, it is inaccessible by DirectX driver.

Matrox Millennium G450 DualHead graphics card – MGA G450 – 16 MB Series

A Matrox user going by name Adis hacked original drivers to make the card work under Maxtof Where many cards were crippled by blurry output, especially as the resolution and refresh rate increased, the Matrox cards delivered very sharp and clear images. By using this site, you agree to the Terms of Use and Privacy Policy. This feature is known as “DualHead” and was a decisive edge for Matrox over the card’s competitors at the time.


This driver was a precursor to a fully functional OpenGL ICD driver, a quick development to improve performance as fast as possible maztor offering an interim solution.

Internally the G is a bit processor, using maxgor Matrox calls a “DualBus” architecture. Matrox made it very clear that they were committed to supporting OpenGL, however, and development rapidly progressed.

Matrox Graphics – Products – Legacy Products – G-Series – G

Eventually a native OpenGL driver called “TurboGL” was released, but it was only designed to support several popular games of the time e. There are no WDM drivers available for this card.

Matrox tried to make stable drivers for several months but with no luck. Views Read Edit View jaxtor. However, contrary to the video mode’s name, G does not support full DVD decoding hardware acceleration.

From Wikipedia, the free encyclopedia. Matrox took the technology developed from the G project, refined it, and basically doubled it up to form the G processor.

This meant that the primary monitor could run much higher resolutions and refresh rates than the secondary. Boards shipped with dual analog VGA connectors. The chip had 3 pixel pipelines with 3 texture units each.

The DualHead capability not 4g50 offered desktop widening but also desktop cloning two screens showing the same thing and a special “DVDMAX” mode which outputs video overlays onto the second monitor.

Matrox Graphics – Products – Graphics Cards – MMS Series – Gx4 MMS

As said earlier, G suffered at launch from driver problems. A bit bus reduces the board’s complexity and cost because fewer traces have to be used, and potentially the pin-count of the graphics processor can be significantly reduced if the chip is designed only for a bit bus.


Matrox only supports HeadCasting feature through the bundled Matrox Digimask software, which have never become popular.

The 3D capabilities of G were identical to G Only a few games supported the feature, such as Dungeon Keeper 2 and Millennium Soldier: The new chip featured several new and innovative additions, such as multiple monitor output support, an all-around bit rendering pipeline with high performance, further improved 2D and video acceleration, and a new 3D feature known as Environment Mapped Bump Mapping.

Overclocking ,axtor showed that the core was unable to achieve higher speeds than G even though it was manufactured on a newer process.

Driver and Software Download

A Matrox “DualBus” chip consists of twin unidirectional buses internally, each moving data into or out of the chip. Retrieved from ” https: EMBM requires either specialized hardware within the chip for its calculations or a more flexible and programmable graphics pipeline, such as later DirectX 8.

It added some new features to DualHead that worked with Internet Explorer to make pages show up on both screens at once. In other projects Wikimedia Commons.