GeForce is a brand of graphics processing units (GPUs) designed by Nvidia. With the launch of the GeForce 20 series, there have been fifteen iterations of the design. The first GeForce products were discrete GPUs designed for add-on graphics boards, intended for the high-end PC gaming market, and later diversification of the product line covered all tiers of the PC graphics market, ranging from cost-sensitive GPUs integrated on motherboards, to mainstream add-in retail boards.