Xilinx FPGAs offer many advantages over traditional CPU/GPU acceleration, including a custom architecture capable of implementing any function that can run on a processor, resulting in better performance at lower power dissipation. When compared with processor architectures, the structures that comprise the programmable logic (PL) fabric in a Xilinx device enable a high degree of parallelism in application execution.
To realize the advantages of software acceleration on a Xilinx device, you should look to accelerate large compute-intensive portions of your application in hardware. Implementing these functions in custom hardware gives you an ideal balance between performance and power.
For more information on how to architect an application for optimal performance and other recommended design techniques, review the Methodology for Accelerating Data Center Applications with the Vitis Software Platform.