AMD’s 6nm Rembrandt, 4nm Phoenix CPUs Could Arrive On AM5

Ryzen 7000 (Raphael) processors have demonstrated to be a number of the greatest CPUs available on the market. At current, Ryzen 7000 are the one AMD chips to relaxation on the AM5 socket. Nevertheless, that might change very quickly. In response to a table (opens in new tab) from the Gigabyte hack final yr, (which we suggest you throw a little bit of salt over), AMD’s Rembrandt and Phoenix APUs might transition from cell to desktop, giving the AM5 socket two new tenants.

The leaked info reportedly factors to a few kinds of Ryzen processors that make use of the AM5 socket. All of them belong to the processor Household 19h, constituted by AMD’s Zen 3, Zen 3+ and Zen 4 chips. We all know that Sort 2 (Fashions 60h-6Fh) refers back to the Ryzen 7000 lineup as a result of the Zen 4-based chips sport the “A60F12” CPU ID. The specs for Sort 2, such because the 28 PCIe lanes, rapidly gave it away.

The Sort 1 (Fashions 40h-4Fh) and Sort 3 (Fashions 70h-7Fh) processors are presently unreleased. We imagine that Sort 1 will be the Ryzen 6000 collection (Rembrandt), whereas Sort 3 will be the Ryzen 7040 collection (Phoenix), cell APUs that AMD has already introduced. The CPU ID for Rembrandt is “A40F41”; Phoenix needs to be “A70F71.” Phoenix targets ultra-thing laptops and is meant to hit the retail market; nevertheless, we have not seen the chips in a public database to corroborate the CPU ID.

Rembrandt comes with Zen 3+ cores and RDNA 2 graphics. TSMC manufactures Rembrandt for AMD on the foundry’s 6nm node. Phoenix, however, is the extra thrilling prospect. Phoenix, which options TSMC’s 4nm node, pairs AMD’s newest Zen 4 cores and RDNA 3 graphics. The chips additionally sport the XDNA expertise, an FPGA-based AI engine that AMD acquired when it bought Xilinx. AMD’s earlier desktop APUs, such because the Ryzen 7 5700G, caught to an octa-core configuration. Cell Rembrandt and Phoenix max out at eight cores and 16 threads, so the recipe suits AMD’s desktop APUs.

Socket AM5 Processor

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Processor Options	Sort 1	Sort 2	Sort 3
Household/Mannequin Numbers	Household 19h, Fashions 40h-4Fh	Household 19h, Fashions 60h-4Fh	Household 19h, Fashions 70h-4Fh
On-chip Graphics	1 Devoted, 3 Sort-C (Hybrid GFX assist)	1 Devoted, 3 Sort-C (Hybrid GFX assist)	1 Devoted, 3 Sort-C (Hybrid GFX assist)
Reminiscence	Two DDR5 Channels: DDR5 UDIMMs One or Two per channel, as much as 4 Whole or DDR5 SO-DIMMs One per channel, as much as Two Whole	Two DDR5 Channels: DDR5 UDIMMs One or Two per channel, as much as 4 Whole or DDR5 SO-DIMMs One per channel, as much as Two Whole	Two DDR5 Channels: DDR5 UDIMMs One or Two per channel, as much as 4 Whole or DDR5 SO-DIMMs One per channel, as much as Two Whole
Error Checking/Correcting Code (ECC)	OPN particular	OPN particular	OPN particular
SVI Interface	V 3.0 x3	V 3.0 x3	V 3.0 x3
SVI Voltage Planes: VDDCR, VDDCR_SOC, VDD MISC	CPU and GFX share VDDCR rail	CPU and GFX share VDDCR rail	CPU and GFX share VDDCR rail
PCIe	PCIE_x20	PCIE_x28	PCIE_x20
USB Ports	Mannequin 40h: 3 USB 3.2 (Sort-C), Mannequin 44h: 2 USB4 and 1 USB 3.2 (Sort-C); 1 USB 3.2 (Sort-A), 1 USB 2.0 (Safe BIO)	3 USB 3.2 (Sort-C), 1 USB 3.2 (Sort-A), 1 USB 2.0 (Safe BIO)	2 USB4 and 1 USB 3.2 (Sort-C), 1 USB 3.2 (Sort-A), 1 USB 2.0 (Safe BIO)”
SPl/eSPI	2 ports SPI/eSPI	2 ports SPI/eSPI	2 ports SPI/eSPI

Like Raphael, Rembrandt and Phoenix arrive with DDR5 reminiscence assist, as much as two reminiscence modules per channel. Shoppers have been asking for a modern-day APU that may exploit DDR5 for a while now. AMD APU’s craze for high-speed reminiscence is effectively documented, so seeing how a lot they will profit from speedy DDR5 reminiscence will probably be fascinating.

There will probably be some options that buyers will miss with Rembrandt and Phoenix, although, corresponding to PCIe 5.0 connectivity. Rembrandt and Phoenix solely assist PCIe 4.0, so they won’t be accessible to benefit from PCIe 5.0 SSDs on the desktop. Enlargement and connectivity are barely restricted as effectively. Whereas Raphael delivers 28 PCIe lanes, Rembrandt and Phoenix solely provide 20, 29% fewer lanes.

The connectivity choices clearly fluctuate among the many three completely different Ryzen processor households. In response to the leaked desk, one Rembrandt variant (Mannequin 40h) provides three USB 3.2 Sort-C ports, whereas the opposite variant (Mannequin 44h) delivers two USB 4 ports and one USB 3.2 Sort-C port. As well as, Phoenix reportedly arrives with two USB 4 ports and one USB 3.2 Typ-C port.

Admittedly, AMD hasn’t given APUs the love they’re entitled to over the past couple of generations. APUs stagnated across the Zen 3 interval. The final APU that AMD launched was the Ryzen 5000G (Cezanne) collection in 2021. Sadly, the poor 7nm Zen 3 chips have been nonetheless on the hoary Vega graphics engine. So AMD’s APUs are in line for a well-deserved improve, and hopefully Phoenix can present it.