AMD’s high-performance motherboard chipsets can be built with chiplets

Along with the rumors that AMD’s Zen 4 Will Launch With Exclusive DDR5 Support, motherboard manufacturers also said that AMD is moving to a chiplet design for its next-generation motherboard chips. AMD famously switched to a chiplet design with its Zen 2 architecture, where it placed 7nm CPU chiplets alongside a 14nm I/O hub array, but a dual-chiplet motherboard chipset is a completely different beast.

AMD works with ASMedia to design their motherboard chipsets, and it looks like it will only be the high-end X670 chipset that will use the dual-chiplet design. Apparently both chiplets are identical (according to Tom’s Hardware), but by doubling them, the X670 can offer twice the throughput and connectivity of the single-chip designs used for the B650. The chiplets themselves will be produced using TSMC’s 6nm production process.

The single-chip implementation provides eight lanes of PCIe 4.0 connectivity, four of which are for PCIe 4.0 storage, with the rest split between SATA drives and USB ports. The X670 will likely double that to 16 lanes, greatly bolstering the platform’s connectivity and making it the platform of choice for serious storage fans.

As already mentioned, the AM5 platform will support DDR5 memory and will also support PCIe 5.0 for AMD, something that Intel’s Alder Lake already supports. The next question is when will we see PCIe 5.0 graphics cards, and it could very well be AMD first to this particular party, as rumors are that Nvidia is sticking to PCIe 4.0 for its next-gen “Ada” graphics cards. .

Zen 4 and the accompanying switch to AM5 are expected to launch later this year.

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