Die shots of AMD's 16-core Zen 5c CCD used in its latest EPYC 9005 series server processors have been exposed, revealing clear differences compared to AMD's previous-generation Zen 4c CCDs. Posted by HXL on X, photos of AMD's 16-core 3nm Zen 5c CCD expose a long row of two banks of cores flanking a 32MB layer of L3 cache in the middle of the die.
AMD's Zen 5c dies are substantially longer than its vanilla Zen 5 CCD, measuring 5.7 mm by 14.83 mm. Zen 5, by contrast, measures 7.4mm by 11.26mm. The extra length was added to accommodate the additional cores each Zen 5c CCD contains, while simultaneously enabling all cores to share a single unified L3 cache, making Zen 5c AMD's first compact core architecture to sport a single-CCX design.
