This is A Potentially Ridiculous Article   Seriously it is a potentially ridiculous article and mislead readers to comprehend the word x for the following reasons   Should sort AMD or Intel implementations as x Generally x was used to point all the processors compatible with IA ISA might or might name themselves with  such as Cyrix x Intel Pentium  and so on AMDs long mode is devised by AMD rather than Intel so how can one sort them together Nowadays software labeled themselves as x are IA compatible software and use x or x differentiating with it So this article confuses reader getting in touch with this word    Generations What is the th generation x processor Who invented this kinda processors AMD K just says that it succeeds AMD K rather than saying it is the th x processor and Ive never heard Intel call their x processors exceeding the th generation And one thing should never be denied the first generation of Itanium processor says its family model number as  which might potentially imply that Itanium might be the th x processor succeeding Pentium III but none confirmed this So take turn back the Transmetas Crusoe and Efficeon if the morph firmed on the system board implements x decoder call themselves as x processors then if put the same processor on another board implementing PowerPC decoder then it would be the PowerPC processor At this situation what kind of processor is it Ridiculous Whats more for what sort it as the thth generation x Who is another Jane Austen making up another Northanger Abbey   x is one architectureISA name What such a ridiculous thing that Ive ever heard on earth x is used to referring the processor a kind or series of processors rather than an architecture If it were the name of an architecture then in this logic way Intel  is one of the implementation of this architecture