CUDA Matmul Kernel on B200 Beats cuBLAS by 6%

Author: @paulWilliamChan
Date: 2026-04-27

Summary

Hand-written matmul kernel in pure CUDA/PTX on B200 beats cuBLAS by 6% at M=N=K=8192. Demonstrates that hand-tuned kernels still matter for frontier performance.

See Also