Soleron on 24 February 2010
Those diagrams are really useful. The i5 750 and the X4 965 are clear winners here (at the kink between the steep section and shallow). It also shows it's not really worth going for a slower CPU that that as the money saved is negligible compared to system price, and more than that is not worth the extra money.
Though Athlon IIs consistently come ahead of Clarkdale and Core 2 in that metric. Impressive when Athlon II is a 45nm quad fighting a 32nm dual. Shows how large the margin Intel really has on those things.
