The Parhelia series was Matrox ‘s attempt to return to the market after a long hiatus, their first significant effort since the G and G lines had become uncompetitive. Dual link TMDS is supported via external controller connected to the digital interface. Usually, rates such as 50Hz for 25fps material , 60Hz for 30fps material and 72Hz for 24fps material are supported, and will ensure that each video frame is usually shown for the same amount of time. Still, let’s assume we’ve decided that a bit desktop display is necessary, and we’re prepared to pay for it. The interaction between those two events means that each video frame will be shown either two or three times, but there’s no specific intent to ensure a tidy repeated pattern. The old Parhelia could use the fact that monitors might be connected to it using analogue VGA cables, so it only needed to implement ten-bit digital to analogue conversion.

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In this case it parhekia the ATI Radeonreleased only a few months later. Modern Macs don’t generally offer any way to do it, although third-party software can. Djsplay init was best known for its ability to drive three monitors “Surround Gaming” and its Coral Reef tech demo.

That’s easier on some systems than others. Never afraid to speak his mind, and always worth listening to, he’s a frequent contributor to RedShark. Views Read Edit View history.

The frame buffer is in RGBA The “Surround Gaming” support allowed the oarhelia to drive three monitors creating a unique level gaming immersion. The Parhelia processor featured Glyph acceleration, where anti-aliasing of text was accelerated by the hardware. If we’re to be applying LUTs to the material after it’s left the computer, whether in a dedicated LUT box or in a monitor, we’ll naturally want to start with more precision.


After the launch of Parhelia, Matrox released Parhelia-LXwhich dispkay only bit memory and has only 2 pixel pipelines. It remained a niche product, while nVidia and ATI control the majority of the discrete graphics chip market. Presumably there were several bugs within the Parhelia core that could not be worked around in the drivers.

Unlike previous products, it supports Windows Vista Aero acceleration. In the meantime, anyone desperate for bit output will need to be careful.

Matrox Parhelia – Wikipedia

In some circumstances, bit requires an OpenGL surface which has been specifically set up to support it, or similar special efforts. More in displya category: The interaction between those two events means that each video frame will be shown either two or three times, but there’s no mmatrox intent to ensure a tidy repeated pattern. However, ATI’s Radeon was released later that year, with a considerably larger transistor count million vs.

First, it’s cheaper, which is always a legitimate if unfortunate reason to do something. Twitter Feed Follow RedsharkNews”.

Matrox Parhelia DL256

The “” suffix refers to the bit ring bus. Later in Diaplay life, when DirectX 9 applications were becoming quite prevalent, Matrox acknowledged that the vertex shaders were not Shader Model 2.

Retrieved from ” https: Still, let’s assume we’ve decided that a bit desktop display is necessary, and we’re prepared to pay for it. This page was last edited on 1 Augustat Despite the lackluster performance for its price, Matrox hoped to win over enthusiasts with the Parhelia’s unique and high quality features, such as “Surround Gaming”, glyph acceleration, high resolutions, and 16x fragment anti-aliasing.


Ordinarily the video hardware and the sound hardware will drift against one another, which will cause the pattern of repeated frames to be slightly irregular even if the monitor and the video are at the same rate. That conversion is typically done fairly arbitrarily because it works much the same way for any piece of computer software that plays back video, from a Blu-ray player to YouTube to Premiere.

Matrox Parhelia HR256

The growth of Large Format. For example, in a flight simulator or sim racingthe middle monitor could show the windshield while the left dsiplay right monitors could display the side views offering peripheral vision. The Parhelia was the first GPU by Matrox to be equipped with a bit memory bus, giving it an advantage over other cards of the time in the parhlia of memory bandwidth.

To forestall criticism, there’s a few quite legitimate reasons one might want to do this. Due to their equivalent pricing against faster cards, the Parhelia never got a significant hold in the market.

This, unfortunately, proved not to be an efficient arrangement in most situations.