Intel's recently disclosed patent, EP4579444A1, sheds light on the Software-Defined Core (SDC) technology, designed to elevate CPU single-thread performance to new heights. Historically, the enhancement of performance has been reliant on large cores, yet these cores encounter diminishing returns in terms of performance gains. In contrast, the SDC technology leverages software to orchestrate the cooperative effort of multiple small cores, effectively mimicking the performance of a large core while circumventing the issue of diminishing returns. This innovative approach dynamically fuses multiple physical cores into a single logical core, fine-tuning the processing of single-thread tasks. Additionally, it employs specialized instructions and a shadow memory buffer mechanism to maintain data synchronization and accuracy across cores. Currently, the SDC technology is in the patent phase, and its potential integration into Intel's processor architecture in the future remains an area of anticipation.