resolutions, and 16x fragment anti-aliasing. In these aspects, some reviewers suggested that Parhelia could have been a compelling alternative to the comparably priced GeForce 4 Ti 4600 ($399 USD), which was the performance leader but only DirectX 8.1 compliant. However, within a few months after release, the Parhelia was completely overshadowed by ATI's far faster and fully DirectX 9.0 compliant Radeon 9700. The Radeon 9700 was faster and produced higher quality 3D images, while debuting at the same price as the Parhelia ($399 USD). Due to their equivalent pricing against faster cards, the Parhelia never got a significant hold in the market. It remained a niche product, while nVidia and ATI control the majority of the discrete graphics chip market. Parhelia-LX After the launch of Parhelia-512, Matrox released Parhelia-LX, which supports only 128-bit memory and has only 2 pixel pipelines. The first video cards using it included Matrox Millennium P650 and Millennium P750. Future products Originally, Matrox planned to produce the "Parhelia 2" successor, codenamed "Pitou". However, when Parhelia-512 failed to compete in the gaming market, the project was never again mentioned and Matrox left the gaming market altogether by 2003. Parhelia processors were later upgraded to support AGP 8×, and PCI Express. In 2006, Matrox re-introduced Surround Gaming with their TripleHead2Go, which utilizing the existing GPU to render 3D graphics, splitting the resulting image over three screens. Certified products include ATI and NVIDIA (and later Intel) processors. With the introduction of Millennium P690 in 2007, it was die-shrunk to 90 nm, and supports DDR2 memory. Windows Vista is supported under XP Driver Model. In June 2008, Matrox announced the release of M-Series video cards. It has the advertised single-chip quad head support. Unlike previous products, it supports Windows Vista Aero acceleration. In 2014, Matrox announced the next line of multi-display graphics cards would be based on 28nm AMD GPUs with Graphics Core Next technologies with DirectX 11.2, OpenGL 4.4 and OpenCL 1.2 compatibility; shader model 5.0; PCI Express 3.0 and 128-bit memory interface. The first AMD-based products, Matrox C420 and C680, was set to be available in Q4 2014. References External links Trusted Reviews - Apple 30in Cinema Display & Matrox Parhelia DL256 Tom's Hardware Preview Tom's Hardware Review Graphics processing units Graphics cards zh:幻日