AMD doubles L2 cache with Zen 4

By the end of the year, several new consumer-oriented processors are expected from AMD, which for the first time in two years is introducing a new architecture and steps into Zen 4. When they were introduced in November 2021 Server processors codenamed “Genoa”.

Genoa expands the Epyc family’s processors with Zen 4 based models made with 5nm TSMC technology. It has up to 96 cores and 192 threads on the list, accompanied by support for PCI Express 5.0, DDR5 and Compute Express Link (CXL). More details are now being researched on the web, in early performance results engineering sample (ES) on Geekbench.

The performance results themselves are relatively nice, as early development samples generally do not perform comparable to the final product. The base frequency drops to 1.2GHz and upon closer inspection the model goes up to 3.4GHz with a turbo frequency. In total, the processor scored 1126 points in single-threaded performance and 4,646 in multi-threaded performance.

The most interesting thing is the specifications. The processor named “AMD Eng. 100-000000479-13” was tested on a platform under the name “Quartz” and is equipped with 32 cores and 64 wires. The model does not appear to be using AMD’s 3D-V-Cache, however, the amount of L2 cache has been significantly increased. Altogether, the model has a size of 32 MB, which gives 1 MB per core and is double compared to its Milan predecessor.

With Epyc “Genoa”, AMD is primarily targeting the high performance computing (HPC) and enterprise sectors. Whether the increased amount of L2 cache is looking further into Ryzen processors based on Zen 4, it’s too early to say. Both server and consumer models with the new architecture are expected to be launched by the end of 2022. By 2023, Genoa will also join Bergamo, which is particularly optimized with the modified Zen 4C cloud architecture.

source: computer