The be quiet Pure Rock 2 (155 mm) has a cooling capacity of 150 watts, which is sufficient for the Ryzen 5 7600X. For the Ryzen 7 9800X3D, however, it could become scarce as it has a higher power consumption. An upgrade to the Dark Rock 5 could be useful to ensure better cooling performance, especially if you plan to overclock the processor. The Dark Rock 5 offers higher cooling performance and might be better suited for power-hungry processors.