That’s Mendocino, but they didn’t bring it to desktop market and probably will not.

It’s not uncommon for functioning dies to be cut down for market segmentation purposes. Intel had segmentation down to a science in the pre-Ryzen days. Like disabling hyperthreading and reducing cache for Core i5. Probably was rarely necessary because of actual defects, yet half or more of the chips got sold as some cut down variant, even when Intel’s yields were great.