Tcc Wddm Better Link
TCC vs. WDDM: Why TCC Mode Is Better for High-Performance Compute
WDDM implements "Timeout Detection and Recovery" (TDR). If your CUDA kernel runs for more than 2 seconds without yielding to the Windows GUI, WDDM assumes the GPU is frozen and resets it (TDR event). This crashes your training job.
: Can significantly improve RAM-to-GPU data transfer speeds in some workloads.
If you are running compute workloads on a compatible NVIDIA GPU in WDDM mode, you are leaving 15–30% of your performance, stability, and memory bandwidth unutilized. The fix is free, takes five minutes, and requires only a command line.