http://www.windowscentral.com/new-surface-book-configuration-core-i5-and-512gb-storage-pre-order- http://www.windowscentral.com/new-surface-book-configuration..

http://www.windowscentral.com/new-surface-book-configuration-core-i5-and-512gb-storage-pre-order- http://www.windowscentral.com/new-surface-book-configuration... This is one updated SKU, but by the looks of it you are right. They are using the same CPU.