A lot of talk has been going on about the G45 performance. In our own test running the QX9770 processor, the performance on the G45 seems to be lagging behind a Phenom 9550 equipped AMD 790GX mainboard.
In 3DMark06, the G45 scored 1180 marks while the 790GX paired with a slower processor is able to churn out performance values of 1787. If sideport is enabled on the 790GX, it could shoot up to 2000 points.
From the results of 3DMark06, we can see that the a Phenom 9550 (2.2GHz) with 790GX performs 50% to 100% faster (depending on whether sideport is enabled) against the Intel G45 paired with the 3.2GHz QX9770.
It remains to be seen when will Intel be able to come out with a IGP that is faster than the AMD variant. Will a G55 be able to improve by another 50% to match it?