keywords: amd intel micro intc underdog
text: The perennial underdog is challenging Intel with a new class of &lt;b&gt;...&lt;/b&gt; For 35 years, Advanced Micro Devices Inc. (AMD ) stood in the shadow of archrival Intel Corp. (INTC ) AMD churned out lower-priced clones of the tech leader #39;s chips and occasionally enjoyed a hit that helped boost its meager profits.