The
J4105 is based on
Goldmont Plus architecture while the
G645 is based on
Sandy Bridge.
Using the multithread performance as a reference, the J4105 gets a score of
61.5 k points while the G645 gets
35.4 k points.
Summarizing, the
J4105 is
1.7 times faster than the
G645 . To get a proper comparison between both models, take a look to the data shown below.