John Carmack om vad han vill se i nästa generation

One of the most important things I would say is a unified virtual 64-bit address space, across both the GPU and the CPU. Not a partition space, like the PS3. Also, a full 64-bit space with virtualization on the hardware units - that would be a large improvement. There aren't any twitchy graphics features that I really want; we want lots of bandwidth, and lots of cores. There's going to be a heterogeneous environment here, and it's pretty obvious at this point that we will have some form of CPU cores and GPU cores. We were thinking that it might be like a pure play Intel Larabee or something along that line, which would be interesting, but it seems clear at this point that we will have a combination of general purpose cores and GPU-oriented cores, which are getting flexible enough that you can do most of the things that you would do on a CPU.

Those are the types of big decisions that I wouldn't want to be in the position of making because they're billion dollar effects. But this generation, I know most executives were surprised at what the attach rate was on this current generation of consoles.