Benchmarks: System
PCMark 10 is interesting insofar as the overall score takes into account various workloads, some of which prefer certain chips. The Intel Core systems tend to win in the app-loading and web-browsing sections, while AMD Ryzen has the upper hand in photo editing and rendering. Put it all together in a composite score and the pros and cons cancel each other out.
VRMark and 3DMark highlight the RTX 2080 Super as a decent step-up from GTX 1080 Ti, and neither system has any trouble delivering stable framerates, so let's see how that translates to actual games.