This resource critically examines the limitations of NVIDIA's Spark-RAPIDS, revealing how its performance remains constrained by Spark's inherent CPU architecture despite GPU acceleration. It introduces Theseus as an innovative solution, designed to overcome these bottlenecks and deliver significantly faster SQL analytics. Discover how Theseus is evolving with multi-engine and multi-silicon support, alongside Spark-Connect integration, to redefine efficiency and cost savings in accelerated data processing.