80CU、PCIE5.0対応、26.6TFLOPS
https://wccftech.com/amd-radeon-rx-gamma-gpu-big-navi-benchmarks-specs/


Overall, the card contains 80 compute units. Since the slide mentions 5120 stream processors, we can now lay to rest rumors about an increase CU to SP ratio.
It is still 64. The clock speeds are divided into 3 categories just like small Navi and the highest clock speed goes all the way up to 2633 MHz.
Based on this clock speed and assuming the same instructions as the last architecture, this card can deliver a resounding 26.6 TFLOPs of single-precision compute.
This is a phenomenal jump over the last generation and driven not only by an increase in core count, but by an increase in clock speeds as well.

https://wccftech.com/amd-radeon-rx-gamma-gpu-big-navi-benchmarks-specs/