Those building an Intel machine these days have loads of options, with desktop CPU prices ranging from as little as $60 to well over $600. The Core i3 is intended as an entry-level option, the Core i5 is geared for mainstream usage, and the mighty Core i7 is meant for high-end systems and enthusiasts. All three Core processors are based on the same architecture but they differ primarily in their number of cores/threads and cache size, and then other factors such as operating frequency and integrated graphics. Many will wonder which one is right for them. Do they need a Core i7 or will the Core i5 be just as fast for their needs? Should they spend less on a Core i3 and allocate the savings elsewhere, or is the Core i5 worth a premium? To try and make your purchase decision a little easier, we'll be seeing how the Core range performs in various applications, video encoding and gaming. Read the complete review.