Intel Nehalem vs. Ice Lake Benchmarks - Including Clock + Power + Thermal Metrics
When taking the geometric mean of all 99 benchmark results, the Core i7 1065G7 within the Dell XPS was delivering 2.76x the performance of the Core i7 720QM within the Lenovo ThinkPad.
For easy viewing, here are all the benchmarks with a noticeable difference between the two processors:
Those wishing to dig through all 99 results in more detail can do so via this Openbenchmarking.org result file.