MSI this week announced its new NX8600GT Twin Turbo with a slight twist. The new NX8600GT Twin Turbo features dual video BIOSes, each containing different core and memory clock settings. Users can switch between the two clock speed profiles with the press of a turbo button. With the stock speed profile, the NX8600GT Twin Turbo operates at 540 MHz core and 1400 MHz memory. The shader clock also operates at 1450 MHz with the stock profile. MSI places the turbo button on the metal expansion bracket above the DVI ports. A press of the turbo button raises the clock speeds up to 580 MHz core and 1600 MHz memory. The shader clock receives a boost to 1508 MHz as well. MSI claims a 20 percent performance boost in 3DMark06 with a press of the turbo button.