WebGL2-compute based NxN matrix multiplication C = A x B
Shader v.6 benchmark.
Fixed random A, B 1024x1024 buffers are used for calculations,
therefore You can set new N value (up to N=1024, multiple of 128).
Tile size TS = 128 and work-per-thread = 8.
FLOPS = 2 N^{3} / time.
Random C_{GPU} and C_{GPU} - C_{CPU} are shown.

calculating

N=

Intel i3-8100, D3D11 ~99 GFLOPS (N=1024).

I re-run all programs many times (press "Run" button)
and try to choose "representative" values. Results differ very much on different GPUs.