What Is a SmartNIC?

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As AI transforms industries and workloads grow more complex, smart network interface cards (SmartNICs) play a critical role in accelerating innovation. But what is a SmartNIC? A standard NIC is a hardware component that connects a device to a network, handling basic packet transmission and reception. SmartNICs are a specialized class of NICs that go beyond traditional NIC connectivity and are ideal for systems requiring AI training and inference.

Unlike a standard NIC, SmartNICs integrate programmable compute resources—such as multi?core Central Processing Units (CPUs), Field-Programmable Gate Arrays (FPGAs), Application?Specific Integrated Circuits (ASICs) or Data Processing Units (DPUs)—directly onto the card. This enables the main CPU to offload routine tasks, including security, routing and packet processing. Reducing CPU load frees system resources and minimizes infrastructure overhead, improving overall efficiency and enabling hardware acceleration for functions such as virtualization, data encryption and Time Sensitive Networking (TSN).