The Ryzen 7000 (Raphael) processors have proven to be among the best CPUs on the market. At the moment, the only AMD chips that use the AM5 socket are the Ryzen 7000. That, however, could change very soon. According to a table from last year’s Gigabyte hack, AMD’s Rembrandt and Phoenix APUs could migrate from mobile to desktop, giving the AM5 socket two new tenants.
According to the leaked information, there are three types of Ryzen processors that use the AM5 socket. They are all members of AMD’s processor Family 19h, which includes the Zen 3, Zen 3+, and Zen 4 chips. Because the Zen 4-based chips have the “A60F12” CPU ID, we know Type 2 (Models 60h-6Fh) refers to the Ryzen 7000 lineup. The Type 2 specifications, such as the 28 PCIe lanes, quickly revealed this.
The processors Type 1 (Models 40h-4Fh) and Type 3 (Models 70h-7Fh) are currently unavailable. Type 1 could be the Ryzen 6000 series (Rembrandt), while Type 3 could be the Ryzen 7040 series (Phoenix), both of which AMD has already announced. Rembrandt’s CPU ID is “A40F41,” while Phoenix’s should be “A70F71.” Phoenix is intended for ultra-thin laptops and is expected to hit the retail market; however, we haven’t seen the chips in a public database to confirm the CPU ID.
Rembrandt features Zen 3+ processors and RDNA 2 graphics. Rembrandt is manufactured by TSMC on the foundry’s 6nm node for AMD.
Phoenix, on the other hand, is the more intriguing option. Phoenix, which is built on TSMC’s 4nm node, combines AMD’s latest Zen 4 cores with RDNA 3 graphics.
The chips also include AMD’s XDNA technology, an FPGA-based AI engine acquired when it bought Xilinx. AMD’s previous desktop APUs, such as the Ryzen 7 5700G, were all octa-core. Mobile Rembrandt and Phoenix have a maximum of eight cores and 16 threads, so the recipe is appropriate for AMD’s desktop APUs.
Rembrandt and Phoenix, like Raphael, support DDR5 memory, with up to two memory modules per channel. For some time, consumers have been requesting a modern APU that can use DDR5. The AMD APU’s obsession with fast memory is well documented, so it will be interesting to see how much they can benefit from fast DDR5 memory.
However, some features, such as PCIe 5.0 connectivity, will be missing in Rembrandt and Phoenix. Rembrandt and Phoenix only support PCIe 4.0, so they won’t be able to use PCIe 5.0 SSDs on the desktop. Expansion and connectivity are also somewhat limited. While Raphael has 28 PCIe lanes, Rembrandt and Phoenix only have 20, which is 29% fewer lanes.
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