Intel’s product database posted on the Ark.intel.com website, information about so far unintended models of Core i3-11100b processors, Core i5-11500B, Core i7-11700B and Core i9-11900KB are found. In the description of one of the models, the manufacturer directly indicates that the chip is intended for use in the composition of the desktop PC.
Information on processors also confirms that they are built on the Superfin architecture using the 10-nm manufacturing process and refer to the Tiger Lake series. Apparently, the suffix “B” in the title indicates that they have the execution of BGA, which means they are all designed for use in finished PCs, in particular, monoblocks and compact nets of the NUC series.
Some details in the processor description still cause questions. It seems that the manufacturer made a mistake, because all models support the thermal velocity boost technology and the maximum frequency of 5.3 GHz. As you know, the support of this technology is only from the flagship models of Intel processors. At the same time, it is indicated that all chips have a configurable TDP indicator at 65 W, including the Core i9-11900KB model with a unlocked multiplier.
Information about these processors in the Intel ARK database was found randomly. It is impossible to find directly through the search on the site. Indirectly, this may say that the specified specifications are not yet final.