The Ryzen 7 9800X3D:
Before starting our tests, we couldn’t do anything else than tell you what’s new about this new Ryzen 9000X3D compared with the previous generation of Ryzen 7000X3Ds. With the Ryzen 7 9800X3D processor, AMD unveils its second generation of AMD 3D V-cache technology.
The main difference lies in the location of this cache. Previously, the 3D V-cache was superimposed on the “Zen 3” cores for the Ryzen 5800X3D and on the “Zen 4” cores for the Ryzen 7000X3D. With this second generation of AMD 3D V-cache, it has been placed below rather than above the processor cores. As a result, the main source of heat, the “Zen 5” cores, is taken care of directly by your cooling solution. The 3D V-cache memory is less sensitive to temperature than the processor cores, which is a considerable development for this second generation. Thanks to cooler temperatures, it is possible to maintain higher operating frequencies in single- or multithreaded tasks than with the Ryzen 7 7800X3D. The gain with the Ryzen 7 9800X3D is a base frequency 500 MHz higher and a boost frequency 200 MHz higher than with the Ryzen 7 7800X3D.
This evolution should enable our AMD Ryzen 7 9800X3D to achieve multithreaded performance close to that of the Ryzen 7 9700X when it takes advantage of the 105 watt TDP option. You can see this for yourself in our tests, as we tested the Ryzen 5 9600X and the Ryzen 7 9700X at 65 and 105 watts to highlight the differences in performance.
In terms of technical specifications, our AMD Ryzen 7 9800X3D has 8 cores and 16 threads, a boost frequency of up to 5.2 GHz, 104 MB of cache and a TDP of 120 watts. Finally, AMD is announcing an average gain of around 8% over the previous generation, i.e. the Ryzen 7 7800X3D.
