The AMD RX 6900 XT is the objective winner of this comparison, securing victory in eight out of fifteen measured specifications. Its most significant technical advantage is its shader unit count, which is 150% higher than that of the alternative. While the AMD RX 7600 falls behind in total spec wins, it maintains a distinct edge in media capabilities, offering 100% better AV1 encoding performance compared to the larger card.

Choose the AMD RX 6900 XT if your primary requirement is raw processing power, as the substantial shader unit advantage makes it the superior choice for compute-heavy tasks. Conversely, select the AMD RX 7600 if your workflow relies heavily on modern media processing, as its vastly improved AV1 encoding support provides a clear functional benefit for users prioritizing video streaming or content creation over sheer hardware scale.