Each core can be dedicated to separate processes – almost like you’ve multiplied the number of processors in the system. This is important, because core-count matters. While the Core i3 selection is dominated by dual-core chips, the Core i5 line-up is more focused on quad-core technology. As such, the Core i5 is a great middle-of-the-road choice for business users and students alike, from the home office to the research lab. Within the Intel Core family, the Core i5 processor sits between the value-focused Core i3 brand and the more advanced Core i7 (which Intel calls its “performance” line). But which one? For many of today’s buyers, the logical choice is an Intel Core i5 laptop from Lenovo. You know you want top quality, so you’re eying models with the Intel Core series of multi-core CPUs. Unless you’re a laptop shopper with money to burn, choosing the right processor is a key part of your selection process.