https://wccftech.com/intel-26-core-xeon-w-cascade-lake-lga-3647-enthusiast-hedt-cpu-leak/

We haven’t seen a lot of action on the enthusiast-aimed LGA 3647 platform since the launch of Intel’s Xeon W-3175X. The processor remains to be the only HEDT offering on the C621 chipset-based platform but that might change soon.

The details for the new Intel processor have appeared within the Sisoftware Sandra database. The processor which has no name is listed as part of the Intel Core i3/i5/i7 component which indicates that it isn’t any standard Xeon-W processor. Do note that Intel hasn’t released any Xeon-W 26 core SKU in their recently launched Cascade Lake-W lineup. The Xeon Platinum 8164 features 26 cores but the Sisoftware benchmark has no problem detecting that CPU as I noticed in various listings of that specific processor. So the only conclusion is that this is a new chip that Intel is readying for the LGA 3647 socketed enthusiast motherboards.