The fully-enabled GB202 chip allegedly offers 192 SMs and going by current leaks, with the RTX 5090 having an 88% enabled GB202 die (170 SMs). That matches up perfectly with the RTX 4090 ...

thanks to its improved SM count of 170 compared to 128 on the RTX 4090 (21,760 CUDA cores vs 16,384). The same is also the case on GB203, which is the die that powers the RTX 5080. However ...