The AMD RX 9060 is the objective winner of this comparison, securing victories in twelve out of fifteen measured specifications. Its most significant advantage over the AMD RX 6400 is its FP32 performance, which is 530% higher. While the AMD RX 6400 maintains a lead in power efficiency with a TDP that is 60% better, the substantial lead in raw computational capability makes the AMD RX 9060 the superior choice across the majority of technical categories.

Users prioritizing raw processing power for demanding tasks should select the AMD RX 9060 to leverage its massive advantage in FP32 performance. Conversely, the AMD RX 6400 is the appropriate choice for those who prioritize power efficiency above all else, as it offers a significantly lower TDP. By evaluating whether your primary requirement is maximum computational throughput or minimized power consumption, you can determine which of these two components aligns with your specific hardware needs.