AMD EXPO & Intel XMP on a single memory module
Intel introduced XMP 3.0 overclocking profiles for DDR5 memory last year, a technology that has been successfully used by memory manufacturers ever since. However, the upcoming AMD Ryzen 7000 series and new AM5 platform will support their own proprietary technology, although royalty free and open for other to use. This technology is called EXPO (Extended Profiles for Overclocking).
It is technically not required for DDR5 memory to use EXPO, as Ryzen 7000 motherboards will support XMP too. However, users building new systems with faster DDR5 memory may want to consider EXPO memory exclusively, providing tailored experience for AMD new platform.
Interestingly, it is possible for DDR5 memory overclocking profiles to coexist on a single model, as both technologies will keep their main profiles separately. This has been confirmed by Toppc, an overclocker working for MSI. The SPD (Serial Presence Detect) profiles have different bytes and blocks, meaning can be stored on a module without affecting competitor settings.
Intel XMP 3.0 and AMD EXPO allow memory suppliers to offer user-defined profiles depending on their usage model. Users can choose low-latency profile which can be proven useful during intense gaming sessions or stick to defualt memory setting providing stable configuration for daily tasks.
AMD EXPO would override XMP P3 profile and user-defined U1, but the SPD block would still have enough room for at least one user profile. Memory makers have already announced their XMP and EXPO modules, and thus far none of them featured both profiles on a single module.