The chipset NVIDIA nForce 590 SLI, which was released in last year, contained a number of update among which we find the technology linkBoost.
This technology works as follows: if during the start up , the motherboard on base of nForce 590 SLI reveals the presence of two video card geForce 7900 GTX, then the frequency of both graphic interfaces is automatically set from default 100 MHz to 125 MHz, and simultaneously the frequency of system bus HT between chipset bridges increases from 200 to 250 MHz. This solution ensures a increase in the capacity by 25% (theoretically) and it can give a certain performance gain .
During November was presented the chipset nForce 680i SLI, which also supported this technology, and the list of compatible video card was enlarged to GeForce 8800 GTS/GTX. In the last BIOS version for such motherboard , linkBoost option disappeared.
Associate reports that NVIDIA in nForce 650 Ultra used another method to increase the performance of graphic system , using products from geForce families. Instead of raising the frequency PCI express in nForce 650 Ultra will be realized an automatic increase in the graphic chip clock frequency . At present in the number of supported graphic card are called the GeForce 7300 GT and GS, but soon to them will be added other video accelerators.
Most likely, the discussion deals with overclock in range from 7 to 10% ( safe range );