Please note: As of 4-2004 matrox is shipping the Parhelia 8X PH-A8X128 as a replacement for the Parhelia 4X PH-A128R. Key features:
512-bit GPU
256-bit DDR memory interface
128 MB DDR memory
Advanced multi-display: Triple-RGB, Dual-DVI, TV output
High performance 2D, 3D & video
Surround Gaming
10-bit GigaColor
AGP 8X
Multi-Display configurations:
Parhelia offers the most advanced multi-display support in the form of DualHead-HighFidelity, TripleHead Desktop, and Surround Gaming. This support is enabled through highly flexible output configuration options including dual-RGB, triple-RGB* and dual-DVI**. Matrox Parhelia cards feature two DVI-I connectors integrated on the bracket. The full flexibility of display configurations are offered to end users by the standard bundling of three cables/adaptors:
One "Y-shaped" DVI-I to dual HD-15 cable
One DVI-I to HD-15 adaptor
One HD-15 to S-video and composite cable
DualHead-HF (2 displays)
Display 1 Display 2
Analog monitor (RGB)
Analog flat panel (RGB)
Digital flat panel (DVI) Analog monitor (RGB)
Analog flat panel (RGB)
Digital flat panel (DVI)
NTSC / PAL TV.
Here is a interesting link to Tomshardware Review on the Matrox Parhelia. There are performance differences between the Retail & OEM (bulk) versions of the card : http:http://www17.tomshardware.com/graphic/02q2/020625/parhelia-01.html