Should you pick First Solar stock over Texas Instruments? Sure looks like it. Consider this. FSLR trades at a lower valuation (P/Operating Income) than TXN, yet it has demonstrated stronger revenue and operating income growth. BERLIN - APRIL 30: An array of photovoltaic solar panels at the Berliner Wasserbetriebe are seen on April 30, 2010 in Berlin, Germany. Germany has invested heavily in solar and other renewable energy sources and is seeking to produce 30% of its energy needs with renewables by 2020. (P ...