PC Ekspert Forum - View Single Post - AMD Ryzen "ZEN4" (7000 CPU / 8000G APU series) Info thread

The Exiled · 26.03.2023., 21:01

"Hibridni" CPU koji to zapravo nije, obzirom da se sve jezgre baziraju na istoj podjednako učinkovitoj Zen 4 arhitekturi.

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AMD hybrid Phoenix APU comes with Performance and Efficiency Cores

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AMD's upcoming Phoenix accelerated processing units (APUs) could feature a hybrid design, featuring Performance and Efficiency cores. While there are no precise details, the latest AMD processor programming guide, leaked online, clearly marks these as two types of cores, most likely standard Zen 4 and energy-efficient Zen 4c cores. There is no information available on what the SKU is but it is stated that this specific chip features a single CCX with a 6-core layout in a 2+4 configuration. There are 2 performance cores & 4 efficiency cores which are based on the Zen 4 core architecture. Rumors are pointing towards a possible Phoenix 2 APU design with a hybrid design featuring 2 Performance and 4 Efficiency cores. The difference between AMD's and Intel's approach is that while Intel uses two very different architectures (Golden/Raptor Cove +Gracemont) the AMD will utilize the same Zen 4 core architecture.

Zen 4c is a variant of Zen 4 featuring smaller Zen 4 cores with lower clock frequencies, power usage, reduced L3 cache, and is intended to fit a greater number of cores in a given space. The ‘c’ in this instance means ‘cloud optimized’. AMD has built two different forms of Zen 4 core, one for most applications, and a higher density version for the cloud. This means that these two cores, while functionally identical, will use different sets of masks. The Zen 4c core has been redesigned to have the same functionality but offer more density combined with a different power/performance point on the voltage frequency curve. AMD has already confirmed Bergamo to be one of the products to utilize Zen 4c cores which are designed for compute density and offer up to 128 core count versus the 96 on Genoa with the standard Zen 4 cores. Both Zen 4 and Zen 4c products will be fabricated on TSMC's 5nm process node. Zen 4c is a variant of Zen 4 featuring smaller Zen 4 cores with lower clock frequencies, power usage, reduced L3 cache, and is intended to fit a greater number of cores in a given space.

Izvor: TechPowerUp i AnandTech