I don't believe that it's reasonable to compare a 15.6" machine against a 13.3" machine, because:
- they really offer quite different ergonomic experiences and different levels of portability
- U-series processors are thermally bound. Whichever machine has the larger cooler (and configured tdp) will have higher performance. You didn't need to run a benchmark for me to know that the bigger, heavier machine would offer higher performance.
I don't believe that it's reasonable to compare a 15.6" machine against a 13.3" machine, because:
- they really offer quite different ergonomic experiences and different levels of portability
- U-series processors are thermally bound. Whichever machine has the larger cooler (and configured tdp) will have higher performance. You didn't need to run a benchmark for me to know that the bigger, heavier machine would offer higher performance.