Recent leaks have shed light on AMD's forthcoming CPU generations, Zen 5 and Zen 6, revealing intriguing core configurations. Allegedly, Zen 5C is poised to house up to 16 cores within a single CCX, while Zen 6 could accommodate up to 32 cores per CCD.
AMD is gearing up to officially unveil its next-gen Zen 5 core architecture at the upcoming Computex 2024 expo, with an anticipated market debut in the third quarter of 2024.
Insights into the Zen 5 and Zen 5C core configurations suggest a reduction in size compared to the existing Zen 4 cores, paving the way for enhanced integration of CCDs within CPU packaging. While Zen 4 featured up to 12 CCDs on top-tier EPYC chips, and Zen 4C boasted up to 8 CCDs, each containing 8 cores, resulting in a maximum of 128 cores.
Looking ahead, AMD plans to stack up to 16 CCDs in the Zen 5 architecture and up to 12 CCDs in the Zen 5C architecture. Zen 5 is expected to maintain the single CCX design within CCDs, offering 8 cores per CCD and a maximum of 128 cores. Conversely, Zen 5C chips are set to adopt a single CCX with a total of 16 cores per CCD, potentially reaching 192 cores.
Here's a comparative analysis of the next-generation Zen 5 and Zen 5C with Zen 4 and Zen 4C chips:
· Zen 5C: Up to 12 CCDs (EPYC) / 16 cores per CCD / 1 CCX per CCD = Up to 192 cores
· Zen 4C: Up to 8 CCDs (EPYC) / 16 cores per CCD / 2 CCX per CCD = Up to 128 cores
· Zen 5: Up to 16 CCDs (EPYC) / 8 cores per CCD / 1 CCX per CCD = Up to 128 cores
· Zen 4: Up to 12 CCDs (EPYC) / 8 cores per CCD / 1 CCX per CCD = Up to 96 cores
Additionally, it's rumored that AMD's Zen 6 core architecture, the successor to Zen 5, will offer three configurations. These include 8 cores per CCD, 16 cores per CCD, and up to 32 cores per CCD. With each CCD boasting 16 cores, a maximum of 32 cores can be achieved in dual CCD components, or up to 64 cores using the same CCD layout.