The GeForce 9600 GT core frequency depend on PCI express system bus frequency, But Nvidia decided to not comment this detail .
Now NVIDIA representatives note that the function linkBoost in NVIDIA motherboards is no longer supported, therefore the GeForce 9600 GT cannot be overclocked automatically .
In addition NVIDIA assert that the video card geForce 9600GT work equally on all motherboards. From this side NVIDIA chipsets do not have any special privileges. However, practical tests prove that nForce 780i SLI chipset give the geForce 9600 GT a clear advantage over Intel p35. This advantage is Hardly caused by the system bus PCI express frequency .
NVIDIA finally confirmed that the core and shader domain frequency in geForce 9600 GT depends on PCI express frequency . Video card actually use two reference frequencies: 100 MHz (PCI express) and 27 MHz (clock generator). .
In addition our associates revealed also the dependence of core frequency with PCI system bus in two video card: GeForce 9500 GT and GeForce 9800 GX2.