The increase in performance of AMD’s CPU architecture Zen 4 should be greater than the company last indicated. In addition to the clock increase of a good 10 percent, the upcoming Ryzen 7000 will work a good deal faster per clock than the previous 5000 models – the so-called IPC (instructions per cycle) will increase by 8 to 10 percent, according to AMD’s Chief Technology Officer Mark Papermaster.
At the top, the Ryzen 7000 processors for desktop PCs (codename Raphael) achieve 5.5 GHz and more. The improved clock behavior under load on many CPU cores is particularly effective: Based on the render benchmark Cinebench R23, AMD promises at least 35 percent more performance in multi-core-optimized applications when comparing a new 16-core processor with the Ryzen 9 5950X. The new bits of information come from AMD Financial Analyst Day.
Zen 4 is said to be at least 25 percent more efficient than Zen 3. Multithreading performance also increases significantly. Two 16 cores were compared.
Although the new AM5 platform is designed for a CPU power consumption of up to 230 watts, so certain Ryzen 7000 models are allowed to work much more power-hungry than before, efficiency should increase by at least 25 percent. The new manufacturing process plays a large part in the increase in efficiency: With the new CPU chiplets, AMD is switching from 7 to 5 nanometer technology from the chip order manufacturer TSMC. AMD will also use the improved 4 nm process within the Zen 4 generation.
AMD again promises the market launch of the first Ryzen 7000 processors together with AM5 mainboards in autumn 2022. Special models such as CPUs with a stacked level 3 cache as the successor to the Ryzen 7 5800X3D will follow later – probably not until 2023.
AMD’s updated CPU roadmap: Zen 5 comes in 2024 with 3 and 4 nm technology from TSMC.
Zen 5 does a lot of things new
Finally, in 2024, the Zen 5 family is coming up, i.e. Ryzen 8000 if AMD stays true to its naming scheme. The company compares Zen 5 with Zen 3: the adjustments to the architecture will again go deeper than in the case of Zen 2 (Ryzen 3000 in desktop PCs) and Zen 4 (Ryzen 7000).
The company has not yet given many details, apart from the use of 3 and 4 nanometer process technology from the chip application manufacturer TSMC.
With Zen 5, AMD again brings major architectural changes, including revised CPU pipelines.
It was already known that AMD will bring Zen 4, a chip-area-optimized offshoot with slimmer CPU cores, called Bergamo (product series) or Zen 4c (architecture). The company wants to continue this development with the Zen 5c, as well as other special models with a particularly large cache. The focus of these “c” cores is on server processors for cloud data centers, but these offshoots could also be exciting for hybrid CPUs analogous to Intel’s Alder Lake series.
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