It doesn't matter if AMD sold its fabs. The CPU's AMD sells use the Intel instruction set designed by Intel. It is well documented that Intel's CPU's outperform AMD's in both absolute performance and performance per Watt, so Lintel delivers the best overall performance. But one thing for sure, W8 is the best thing that ever happened to Linux.
"You do have Intel inside since AMD licenses Intel's x86 **architecture** for their CPU's."
" The CPU's AMD sells use the Intel **instruction set** designed by Intel."
The AMD 64 bit x86 architecture WAS NOT designed by intel, rather by AMD in its entirety.
That's why intel licensed it from AMD. Learn to read. And while you're at it, if you don't know what you're talking about maybe you should keep your trap shut. You started out talking about "architecture" and then switched to talking about "instruction set".
Those two things are not the same, Mr. computer genius.
"x86-64 is an extension of the IA-32 32-bit version of the x86 instruction set. It supports vastly larger virtual and physical address spaces than are possible on IA-32, thereby allowing programmers to conveniently work with much larger data sets. x86-64 also provides 64-bit general purpose registers and numerous other enhancements. The original specification was created by AMD,..."
Further: "The x86-64 specification is distinct from the Intel Itanium (formerly IA-64) architecture, which is not compatible on the native instruction set level with the x86 architecture."