https://wccftech.com/amd-msi-claim-different-ipc-increase-numbers-ryzen-3000-cpus/

With all major launches, there is often a bit of confusion on details.  Sometimes bigger and sometimes smaller.  This go around it’s an interesting one with regards to the IPC of the new Ryzen 3000 Series CPUs.  Launching on July 7th the Ryzen 3000 Series is promising 15% IPC which is great, but there seems to be a bit of a disconnect between what AMD showed to the public vs what they showed to MSI and potentially other board partners.

The slide that was presented to MSI showcased a 13% IPC improvement, which is still a decent uptick and nothing to complain about.  But was it a disconnect? Was it planned in case of a leak so that if it had leaked then people would anticipate a 13% IPC uplift then have their expectations subverted when the 15% slide was shown publically? It is always possible that the 13% slide shown to MSI was a much earlier revision prior to final performance tuning and nothing to panic over.