If this is true, I'm taking a pass. I don't need eight cores when 6 of them will sit idle hogging power. Just give me a dual-core A15 and maybe a companion core. I'm set.Other speculation has suggested that the Galaxy S4 will be the first eight-core smartphone. It's said to boast four Cortex-A15 cores along with four Cortex-A7s.
While you would be right, It doesn't make sense to use FOUR A7 cores (versus one or two A7s) for "lightweight tasks" while powering down the A15s. I don't doubt that you could find some rare and amazingly specific workload that would benefit from FOUR in a performance/watt measure, but certainly not general purpose smartphone use. I think that in reality we will see a Dual A15/Dual A7 architecture (ARM's standard big.LITTLE architecture) and that someone in the rumor mill heard reports of "quad-core" and "will have both A15 and A7 cores" and though that must mean quad-A15 + quad-A7."....The A7's would function simply as low power, energy efficient alternative in a 'BIG.little' heterogeneous computing configuration on the SOC. Either the Cortex A15's will be active, or the A7's, never both at the same time."