Same process, design, .... but the AES CPU is priced at 50% more than the non-AES part. All the server chips have AES. Security concerns will drive volume AES desktop/laptop adoption and therefore margins.
If you compare the 2 laptop chips, one has AES (plus features that seem to accompany AES) and the other CPU does not have AES. I was trying to find two CPU that only differed in the AES part but that does not exist.