The adoption of DDR5 memory on modern platforms has brought significant advancements in bandwidth and data transfer rates, and AMD's Ryzen 9000 AM5 platform is no exception. As DDR5 memory becomes more mainstream, the potential for performance scaling across various memory speeds offers an opportunity to understand how different configurations impact overall system behavior. In this review, we investigate the scaling of DDR5 memory on Ryzen 9 9950X, running speeds from DDR5-8000 down to the JEDEC baseline specifications of DDR5-5600 and DDR5-4800. These tests aim to highlight the performance gains and any potential trade-offs when pushing DDR5 memory beyond the standard specifications. We're also doing testing at the interesting DDR5-6000 CL28 setting as well as DDR5-6400 with UCLK 1:1. https://www.techpowerup.com/review/ddr5-memory-performance-scaling-with-amd-zen-5/ Intel Core i5 Core i5-12400F Core i5-13400F Core i5-12600K Core i5-13600K Core i5-14600K AMD Ryzen 5 Ryzen 5 8500G Ryzen 5 5600X Ryzen 5 7600 Ryzen 5 7600X Ryzen 5 9600X Intel Core i7 Core i7-12700K Core i7-13700K Core i7-14700K AMD Ryzen 7 Ryzen 7 5700G Ryzen 7 5700X Ryzen 7 7700 Ryzen 7 7700X Ryzen 7 9700X Ryzen 7 5800X Ryzen 7 5800X3D Ryzen 7 7800X3D Intel Core i9 Core i9-12900K Core i9-13900K Core i9-14900K AMD Ryzen 9 Ryzen 9 5900X Ryzen 9 7900 Ryzen 9 7900X Ryzen 9 7900X3D Ryzen 9 9900X Ryzen 9 5950X Ryzen 9 7950X Ryzen 9 7950X3D Ryzen 9 9950X