If this were true (and I highly doubt it) it's obvious how to make money from it: collect a 7 figure paycheck from Nvidia, AMD, or any FAANG.
On average over 20 runs:
CuBLAS (./sgemm 0) has 50.9 TFLOPS.
My kernel has 61.8 TFLOPS, so it's actually +21% speedup in this benchmark.
How do I collect my paycheck?
On a 4090 gpu, average of 20 runs of SGEMM_CUDA:
size tflops_cublas tflops_my diff
4096² 50.8-50.9 61.8 +21%
8192² 56.3-56.4 67.1 +19%
16384² 53.6 66.7 +24%