- fp8_linear_forward: cast + cublasLt GEMM + transpose + bias in one call - fp8_linear_backward: scale-free, dtype derived from input tensor - drops per-op Python dispatch (was ~6-8 launches per linear) and amax syncs - 1024x1024 linear: 6.8x slow -> 0.67x (36.7us vs 24.8us bf16) - small-model e2e still 1.71x slow; 15bt estimate ~0.78x (linear-heavy)