Shulou(Shulou.com)11/24 Report--

According to CTOnews.com news on September 10, for nearly half a year, there have been frequent rumors that AMD plans to launch an APU that combines Zen 4 and Zen 4c cores (with the same architecture and lower frequency), just like Intel's P + E hybrid architecture, which seems to be nearing release.

HXL (@ 9550pro), the hardware whistleblower, has released a screenshot of the mold of AMD Phoenix 2, showing the processor design of a new generation of Zen 4 cores + Zen 4c cores, which clearly uses a 2-to-4-core 12-thread design.

As we can see from the figure, the chip uses a large L3 cache (in the middle of the left, green structure), two high-performance Zen 4 cores (below the L3 cache), four smaller Zen 4c cores (three above L3 and one to the right of the Zen 4 core), and a large built-in GPU (right).

In addition, there are several DDR5 / LPDDR5 PHY interfaces at the top of the bare chip, and there are PCIe, USB and other physical interfaces at the bottom, left and right sides of the APU.

These cores are much smaller than comparable products, suggesting that AMD positioned Phoenix 2 as a low-cost APU for cheap laptops.

While it's not clear exactly what AMD has cut from Phoenix to make it so small and cheap, AMD is likely to unveil these new models in the near future or add them to the lineup of the Ryzen 8000 line-up launched in 2024, when we will be able to understand the product more clearly.

In May this year, AMD officially released the 7040U series of processors, including R3 7440U and other four models, ranging from 4-core to 8-core models, of which R57640U and R57540U adopted 6C12T design.

AMD later confirmed to xda-developers that the company did have a six-core APU and would use it for the 7440U. Although AMD did not confirm the underlying design, other details were perfectly consistent with the revelations, and unlike the previously announced eight-core R3 7440U, it was almost certainly the Phoenix2 processor.

In addition, the up master @ Golden Pig upgrade package has also released a live picture of the Phoenix2 appearance. According to various whistleblowers, the Phoenix 2 chip will use two Zen 4 cores and four Zen 4c cores, with a total of 6 cores and 12 threads.

AMD said that it is not only a Phoenix product that switches from 8 cores to 6 cores, but also has adjustments in CPU, GPU and even AI.

PhoenixPhoenix2CPU kernels 86GPU kernels 124Ryzen AI with or without Die area initial rumors that Phoenix2 will exist in Ryzen 37440U and Ryzen 57540U, while AMD said the Ryzen 57540U does not use a similar design, at least "only 7440U".

In addition, it was previously reported that "Phoenix 2" will use two full-blooded Zen4 cores and four low-power Zen4C cores for background tasks. The RDNA 3 GPU has been reduced from six WGP (12 CU) to two (4 CU), and the TDP has dropped from "35W +" to a maximum of 28W.

CTOnews.com reported in March that information about the Phoenix "hybrid architecture" processor, corresponding to the Phoenix 2 mobile APU, appeared in AMD's official documents at the time, using TSMC's N4 process and 15-28W power consumption for products such as lightweight notebooks or game handsets.

According to the official AMD PPT,AMD Zen 4c and Zen 4 indicators are basically the same, the difference is that each core of Zen 4 has 4MB L3 cache, while Zen 4c is 2MB.

AMD data shows that Zen 4c has exactly the same IPC (performance at a given frequency) as Zen 4 because its front end, execution phase, load / storage components, and internal cache hierarchy are exactly the same.

Related readings:

"the real-time picture of AMD Phoenix2 processor is released, and the mini-APU of Zen4C architecture"

"AMD confirms the existence of hybrid architecture consumer processors. More information will be announced later."

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