Apparently based on the GA102, the GeForce RTX 3090 may feature 4,992 CUDA cores and 12 GB of GDDR6 VRAM. Running at 18 Gbps, the RTX 3090 would be one of NVIDIA's flagship Ampere consumer GPUs.
https://www.notebookcheck.net/NVIDIA-GeForce-RTX-3090-Ampere-GPU-to-sport-4-992-CUDA-cores-and-12-GB-of-18-Gbps-VRAM.458939.0.html