Beyond the GPU: The Strategic Role of FPGAs in the Next Wave of AI
This addresses the problem of predictable performance and customization in AI workloads for applications like edge computing and data centers, though it is incremental in exploring an alternative hardware option.
The paper tackles the limitations of GPUs in AI acceleration by proposing FPGAs as a reconfigurable platform for lower latency, energy efficiency, and fine-grained hardware control, resulting in reduced latency, improved privacy, and freed GPU resources in data centers.
AI acceleration has been dominated by GPUs, but the growing need for lower latency, energy efficiency, and fine-grained hardware control exposes the limits of fixed architectures. In this context, Field-Programmable Gate Arrays (FPGAs) emerge as a reconfigurable platform that allows mapping AI algorithms directly into device logic. Their ability to implement parallel pipelines for convolutions, attention mechanisms, and post-processing with deterministic timing and reduced power consumption makes them a strategic option for workloads that demand predictable performance and deep customization. Unlike CPUs and GPUs, whose architecture is immutable, an FPGA can be reconfigured in the field to adapt its physical structure to a specific model, integrate as a SoC with embedded processors, and run inference near the sensor without sending raw data to the cloud. This reduces latency and required bandwidth, improves privacy, and frees GPUs from specialized tasks in data centers. Partial reconfiguration and compilation flows from AI frameworks are shortening the path from prototype to deployment, enabling hardware--algorithm co-design.