The
3500 is based on
K10 architecture while the
G645 is based on
Sandy Bridge.
Using the multithread performance as a reference, the 3500 gets a score of
32.7 k points while the G645 gets
35.4 k points.
Summarizing, the
G645 is
1.1 times faster than the
3500. To get a proper comparison between both models, take a look to the data shown below.