The
i3-1215U is based on
Alder Lake architecture while the
906ED 2.1GHz is based on
Comet Lake.
Using the multithread performance as a reference, the i3-1215U gets a score of
185.6 k points while the 906ED 2.1GHz gets
657.2 k points.
Summarizing, the
906ED 2.1GHz is
3.5 times faster than the
i3-1215U. To get a proper comparison between both models, take a look to the data shown below.