After promising to bring power-efficient Haswell processors to tablets, Intel has now started shipping new low-power, fourth-generation Core i3 processors, including one that draws as little as 4.5 watts of power in specific usage scenarios. The dual-core Core i3-4012Y processor is part of a batch of new Haswell processors that could go into fanless tablets and laptop-tablet hybrids, bringing longer battery life to the devices.