In many cases the dedicated graphic is cheaper than integrated. Intel Iris comes in more expensive processors which are not necessary for games. You might pay

In many cases the dedicated graphic is cheaper than integrated. Intel Iris comes in more expensive processors which are not necessary for games. You might pay extra $300 on great CPU with integrated card, over slower CPU with dedicated GPU. For example I saved $280 on my Dell XPS 13. It only has Intel HD Graphics 520 compared to Intel Iris Pro Graphics P580. CPU is same, except 100MHz clock.