than Intel's, AMD would've died already.
There's nearly no technical advantages in current AMD processors over Intel's except HyperTransport. HyperTransport is superior than Intel's Front-Size Bus (FSB). However, Intel's coming Common System Interface (CSI) technology will be answer to AMD's HyperTransport.
Traditional Pentium 4 is a terrible processor by today's standards and that's why AMD had increased market share a while ago. Not any more since the release of Intel Core processors.
Clock for clock, current Intel x86 processors beat AMD's in almost all performance test, sometimes by a wide margin while consumes less power. Only in some specific memory intensive tests did HyperTransport equipped AMD processors show slight advantage. AMD simply has no competitive processors right now to take more market share. Intel even delayed its 45nm based quad core processors release by a few months and holds a higher than expected price because there was no competition.
Looking at Intel's roadmap of future processors, AMD has a very hard time to catch up. However, I sincerely appreciate AMD's efforts (performance per watt, AMD64, hypertransport) to push Intel into current leading position. Otherwise, Intel would offer us just the lousy space-heater Pentium 4 with higher and higher clock speed.