In our SLI gaming performance scaling articles we're going to investigate SLI scaling factors with different CPUs and different clock speeds (since a lot of guys asked for this). In eight recent games and two theoretical benchmarks we want to find out what difference SLI makes, when we run benchmarks with the CPU at stock clocks as well as overclocked to 4.5 GHz. Let's kick off with an Intel 4960X CPU and two ASUS GTX 780 DirectCU II graphics cards and find out what the differences are going to be like.