Later in the keynote, after the Rage video rolled, id's John Carmack promised that the next Doom game will "look like it's built on another engine" compared to the already amazing-looking Rage. Carmack said that the Doom project will use "three times the horsepower," and as such it will run at 30 frames per second compared to Rage's 60. Both Rage and Doom will be running on the id Tech 5 engine.

Carmack noted that Doom will be a multi-platform release, but emphasized, "By the the time that the next Doom game ships to consoles, PC will be light years ahead of current consoles." In other words, the PC version of the new Doom should look significantly better than on the Xbox 360 or PlayStation 3, whereas the console ports of Rage will be more or less the same visually