Some of today’s faster processors produce a lot of heat, and this heat has to be dissipated so your system
doesn’t operate intermittently or even fail completely. Boxed processors from Intel and AMD are
sold with the heatsink and fan included. And although OEM processors don’t include a heatsink from
the processor manufacturer, most vendors who sell them add an aftermarket heatsink and fan to the
package; often, aftermarket heatsinks and fans provide significantly better cooling than those shipped
with boxed processors, making them more suitable for overclocking.