DSOGaming writes: "Earlier yesterday, John Carmack shared his thoughts on AMD’s Mantle. During Nvidia’s Montreal event, Carmack claimed that although he would be tempted to use Mantle, he would not do such a thing at this point. Carmack claimed that it’s not stupid – for AMD – to attempt something like that, however he believed that Sony and Microsoft would not embrace it. But why is Carmack against this new API?"
Full title should be "John Carmack: Nvidia's OpenGL extensions rival Mantle, 8GBs on consoles not a significant change over PCs with 4GBs"
Due to the 100 words limit of N4G, that was not possible, thus some readers misinterpreted it. Carmack did not comment on old-gen consoles vs next-gen consoles.