AMD Ryzen 7000: First Information on Socket AM5 Zen 4 CPUs with PCIe 5.0 and DDR5






During Computex 2022, AMD CEO Lisa Su spoke for the first time about the upcoming Ryzen 7000 processors. So-called “Raphael” CPUs based on Zen 4 should not only achieve clock rates in excess of 5GHz, but also rely on the new AM5 socket, with which DDR5 RAM and PCIe 5.0 find their way to AMD.

Lisa Su, CEO of AMD, revealed the first information about the upcoming Ryzen 7000 processors shortly before the launch of Computex 2022. In the course of the presentation, there was talk of clock rates over 5GHz, but in a later game demo, there was An early sample with clock rates of 5.5GHz for you to marvel at. Another new feature is that Zen 4 CPUs have an integrated RDNA 2 graphics unit as standard. New desktop models should launch in the fall with the AM5-linked socket – including DDR5 and PCIe 5.0.

Zen 4 architecture with more than 15 percent single-thread performance

According to AMD, the performance increase in single-thread performance from Zen 3 to Zen 4 should be more than 15 percent. What’s interesting about this number is that the value should consist of a combination of increment in instructions per cycle (IPC) and clock rates above 5GHz. When introducing the Zen 3 with the Ryzen 9 5950X (for test report) as the flagship, AMD alone spoke of a 19 percent IPC increase. Combined with the increased clock rates, we were able to measure an average single-thread performance increase of around 24 percent, our CPU comparison shows. Given the fact that the Core i9-12900KS is (according to the test report) 17 percent ahead of the Ryzen 9 5950X in this discipline, it’s still questionable whether AMD can keep up with Intel.

AMD Zen 4 Core architecture

In order to increase the data transfer speed, the L2 cache was doubled from 512KB per core to 1MB. In addition, it is reported that special instructions have been implemented for hardware-based AI workloads for neural networks and machine learning. As with its predecessor, AMD is based on two core networks with up to eight cores based on Zen 4. This means that there will be no change in the number of cores in the top model.

TSMC is responsible for manufacturing the chips using an improved 5nm manufacturing process. With its newly developed I/O die, AMD is once again relying on TSMC’s 6nm process. For the first time, this provides integrated RDNA 2 graphics for all Ryzen 7000 processors. So far, only Ryzen models with the G suffix have an iGPU. Last but not least, the new CPUs are said to support both DDR5 and PCIe 5.0 memory, which means AMD is catching up with Intel. The first processors based on Zen 4 are supposed to hit the market this fall.

Chiplite design in 5nm manufacturing process

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Chiplite design in 5nm manufacturing process

© AMD

Clock speeds over 5.5GHz for gaming and a significant increase in multi-threading performance

At the end of the show, AMD introduced a pre-production Ryzen 7000 gameplay with 16 cores in Ghostwire Tokyo. You can see in the video that the CPU can reach speeds of up to 5520.3MHz when gaming. Unfortunately, it is not known whether this is a full-core clock or only a clock on a single computing core, or whether the CPU is running at standard settings or overclocked.

Clock speeds over 5.5GHz when gaming

Finally, there was a Ryzen 7000 CPU with 16 cores in a head-to-head duel with the Core i9-12900K in the 3D Blender graphics suite. According to the manufacturer, the Ryzen 7000 CPU should perform up to 31 percent better than the Alder Lake CPU. In our own tests, the Ryzen 9 5950X was already about five percent ahead of the Core i9-12900K in order to better rank these values. Accordingly, the top Ryzen 7000 model should provide about 20 percent more multithreading performance than the Ryzen 9 5950X, although we should not forget that power consumption should be slightly higher.

31 percent better performance for the blender versus 12,900k

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31 percent better performance for the blender versus 12,900k

© AMD

AM5 socket with DDR5 and PCIe 5.0

With the new AM5 socket, AMD is switching from Pin Grid Array (PGA) to Land Grid Array (LGA), which rival Intel also depends on. According to the manufacturer, this improves the power supply and signal integrity, which is necessary for DDR5 and PCIe 5.0. Furthermore, the new socket should support processors up to 170W as standard, whether we’re talking about thermal design power (TDP) or packet power tracking (PPT). With the Ryzen 9 5950X, the TDP is still 105 and the PPT is 142 watts.

New socket AM5

As usual in the mainstream segment, new processors can also handle dual channel working memory. In addition, both the graphics card and the SSD can be controlled via PCIe 5.0 – provided you have a suitable motherboard. Last but not least, AMD mentions that the upcoming AM5 socket is compatible with all coolers designed for AM4. In addition to the 24 PCIe 5.0 slots, up to 14 USB ports with speeds up to 20Gbps and Type-C are available on the I/O side. Rounding out the package is support for Wi-Fi 6E, Bluetooth 5.2, and up to four screen connections.

I/O Features of Socket AM5

Three new chipsets: X670E, X670 and B650

With the Ryzen 7000 processors, AMD is introducing three new chipsets: the X670E, X670, and B650. The X670E Extreme is aimed at enthusiasts who want to get the most out of their system. Motherboards with these chipsets offer PCIe 5.0 support for all components, dual channel DDR5 RAM support and a lavish power supply to overclock both the CPU and main memory to the maximum. Below are the X670 gamer motherboards, which support at least PCIe 5.0 for the graphics card and SSD. AMD does not provide any information regarding RAM compatibility, but overclocking main memory and CPU is certainly possible.

AMD X670E, X670 and B650 chipset

The cheapest boards are based on the B650 chipset, which can only provide PCIe Gen 5 for a solid-state drive. In addition, overclocking should be possible, but the range is somewhat limited due to insufficient voltage converters and cooling. According to AMD, 5th generation M.2 SSDs should enable a sequential write rate 60 percent higher than already available PCIe 4.0 SSDs. The first PCIe 5.0 SSDs should be brought to market at the same time as the AM5 socket.

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