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在命令提示符（CMD）或PowerShell中，导航至 C:\Program Files\NVIDIA Corporation\NVSMI 并运行 nvidia-smi 。在输出中，您可以在“Driver Model”一栏看到当前状态。

: WDDM has a "watchdog" timer that kills GPU processes if they take too long (Timeout Detection and Recovery). TCC ignores this, allowing long-running simulations to finish without crashing. Service & Remote Access : TCC allows GPUs to be accessed by Windows Services

The real tragedy is that NVIDIA artificially restricts TCC to professional cards, leaving consumer GPUs like the RTX 5090 performing at half their potential on Windows compared to Linux. Until NVIDIA changes this policy — or Microsoft's new MCDM (Multi-Channel Driver Model) matures — developers with professional GPUs should absolutely enable TCC for compute workloads, while GeForce users may need to consider dual-booting Linux to unlock their GPU's full potential.

Display Support: WDDM is required if you want to plug a monitor into your GPU.

Maximum Performance: By bypassing the Windows graphics subsystem, TCC reduces latency and overhead.

If you need massive parallelization and high-performance computing, TCC may be the better choice. However, if you need advanced graphics features and a widely supported driver model, WDDM may be the way to go.

Stop crippling your expensive GPUs with WDDM overhead. Switch to TCC. Your training epochs will thank you.