The most obvious difference between the boxed and OEM processors is the physical packaging. It
could be argued that both technically come in boxes, but the Intel or AMD boxed processors come
individually packaged in a colorful shrink-wrapped box that includes the processor, the heatsink and fan, installation instructions, a certificate of authenticity, warranty paperwork, and so on. Of particular
note is the cooling system, which is designed to work under worst-case thermal environments and
is a high-quality and heavy-duty unit.