Abstract: A video graphics controller circuit for a personal computers includes a standard, EGA-compatible graphics adapter and a high-resolution companion module. A method is disclosed for configuring the graphics adapter is to generate 2 pixels in parallel in each clock cycle. The companion module serializes the pixels to generate a serial stream of pixels at twice the frequency of the graphics adapter. The companion module can also be configured as a video line driver so that the graphics controller circuit can also run software in standard video modes.