[citation][nom]mikenygmail[/nom]TITAN > XC30. Titan, powered by AMD CPU's, is the world's fastest supercomputer. With 299,000 AMD x86 Cores, it's got 17.59 PFlops of processing power. The new champion Titan contains almost 19,000 processing nodes and 710 terabytes of memory. In addition to a 16-core AMD CPU, each node contains a GPU accelerator.[/citation]
Yes... Titan does use Opteron processors, but that's not the primary source of its computing power. Roughly 90% of its performance, as measured by LINPACK, comes from its Tesla K20X coprocessors.
And I'm sure XC30 could be configured to outperform Titan, it's powered by inherently higher performing processors.