X670(E) in dual-chip design: AMD relies on two individual PCH chips for Ryzen 7000

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There has been speculation for a long time about a multi or dual chiplet design for the X670 chipset, but now photos of an Asus X670-P WIFI confirm for the first time that the X670 and thus also The X670E chipset for Ryzen 7000 (“Raphael”) consists of two individual Promontory 21 PCH chips from ASMedia.

Multi- Chip or Multi-Chiplet

The Twitter user HXL alias @9550pro, known for his accurate leaks, has several shots of an Asus X670-P on the largest Chinese microblogging platform Sina Weibo WIFI, which proves the split of the new chipset into two separate PCH chips.

Whether this is a classic multi-chip or a multi-chiplet design is open to debate. The question of how to connect the two chips has also not yet been finally clarified. Ultimately, the chosen path for AMD should represent a cheapest solution to be able to offer as much I/O connectivity as possible via the X670 and X670E chipsets. A cheap board with a different “chipset” could also be created so quickly, provided that the features provided for each PCH are identical. and Southbridge

The structure is somewhat reminiscent of the times when the hub architecture consisted of a north bridge and a south bridge, which communicated with each other via PCI or a direct connection. So far, the PCHs have actually only communicated with the CPU; whether there is a direct connection between them is not yet clear with AMD's chosen solution.

Shortly before AMD itself gave more details about the Zen 4 CPUs with integrated RDNA-2 at its Computex 2022 keynote on Monday GPU is announced, more and more details about the new AM5 platform are trickling in.

More on the subject

  • Ryzen 7000: First AM5 boards for Computex 2022
  • Ryzen 7000: X670E as an “extreme” chipset for Raphael
  • Ryzen 7000: Zen 4 CPU with integrated RDNA 2 GPU
  • Ryzen 7000: Zen 4 should come in the summer
  • Ryzen 7000: RAMP and EXPO for DDR5 memory

At Computex 2022, AMD is expected to present new details on the upcoming desktop CPUs of the AMD Ryzen 7000 series also talks about the three rumored chipsets X670E, X670 and B650 before the mainboard manufacturers allow a first look at their new motherboards.