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, the substantial disparity in raw computational capability makes the AMD RX 9060 the superior component across the vast majority of the evaluated technical categories.

Users prioritizing raw computational power should select the AMD RX 9060 to leverage its massive lead in FP32 performance. Conversely, the AMD RX 6400 is the appropriate choice for those who specifically require a low-power solution, as it offers a 60% advantage in TDP. Choosing between these two components depends entirely on whether your primary requirement is maximizing processing throughput or minimizing power consumption within your system build.