Qualcomm demonstrated some of the advantages of the new 7W passively cooled Snapdragon 8cx over Intel's 15W Core i5-8250U by running a few benchmarks in PCMark 10 and 3DMark. The Snapdragon 8cx posted overall better scores than the 8250U in CPU and GPU tests along with significant improvements to battery life compared to the 8250U.
https://www.notebookcheck.net/Qualcomm-shows-off-first-benchmarks-of-the-Snapdragon-8cx.422265.0.html