From a technical point of view, there is no essential difference between bulk and boxed CPUs, at least not in terms of quality. For CPU manufacturers, their products can be divided into two categories according to the supply method, one is supplied to brand-name machine manufacturers, and the other is supplied to the retail market. Most of the products for the retail market are boxed products, while bulk products are partly derived from branded machine manufacturers' leakage and agents' sales strategy. Theoretically, there is no difference between boxed and bulk products in terms of performance, stability, and overclocking potential, but there are some differences in quality.
Generally speaking, boxed CPUs have a longer warranty (usually three years) and come with a better quality cooling fan, so they are often preferred by consumers. However, this does not mean that the bulk CPU has no warranty, as long as the choice of reputable agents, generally can get a one-year regular warranty time. In fact, the CPU does not have the concept of warranty, this time the warranty is equivalent to the warranty replacement, so do not worry about the bulk of the warranty level will have any water.