Whilst DOOM 4 was not shown at this year's QuakeCon, John Carmack has said that it is to be three times better in terms of graphics than Rage will be because it's to be locked at 30FPS, amongst other things:

Carmack later said clarified his comments, adding that the PC would have advanced so much by the time Doom 3 comes out that while the game will be 30fps locked on console, it could be 60fps or higher on PC, so "PC will be able to crow a bit over the consoles again".

Todd Hollenshead, id CEO, couldn't say much about the game. "I can tell you there will be guns. I can tell you there will be blood. I can tell you there will be demons. I can tell you there will be gibs. In other words, I can tell you it's going to be kickass, because it couldn't be anything else right?" he joked.

Check out the rest at Eurogamer.