About half a year ago, it was rumored that the APU code-named Strix Point (belonging to the Ryzen 8000 series) would use the same big.LITTLE architecture as Intel’s Alder Lake, with 8 large cores and 4 small cores. Its structure is Zen 5 architecture + Zen 4D architecture, and is manufactured using 3nm process. However, there is not much information about the Zen 4D architecture. It is generally believed that this is a “small core” designed by AMD for future CPUs, which is similar to Intel’s Efficient Core based on the Gracemont architecture.
According to the news shared by the YouTuber Moore’s Law Is Dead, the Zen 4D architecture (Zen 4 Dense) is a redesigned Zen 4 architecture, reducing the cache capacity and reducing the frequency to improve the energy efficiency of the core. The cores based on the Zen 4D architecture will be smaller due to the reduced cache capacity, allowing AMD to fit as many as 16 cores into each chiplet. In addition, AMD will not develop a completely different type of micro-architecture. In terms of “small core”, it chooses to advance with the process node, shrinking and improving the existing architectural design, which is different from Intel’s choice to design two different micro-architectures. .
It is said that AMD’s first product using the Zen 4D architecture is the EPYC processor code-named Bergamo, which is equipped with 8 small chips, each equipped with 16 Zen 4D architecture cores. It is uncertain whether AMD’s “small core” type will support multithreading, providing more threads than Intel’s E-Core. In addition to server platforms and desktop platforms, it is believed that the Zen 4D architecture kernel should also have more room to play on mobile platforms. In the consumer market, in addition to the APU code-named Strix Point, it is unclear whether the Zen 5 architecture CPU, code-named Granite Ridge, which belongs to the Ryzen 8000 series, will also join the Zen 4D architecture core.
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