From what I read the new GTS has about the same performance as a GTX and it's about 10-15% faster than the GT. I also hear the GTS is a nice overclocker while the GT is mediocre at best. With that $100 price difference my question on choosing which card depends on if I can close the performance percentage gap between the GT and the GTS by overclocking the GT and then some using an after market cooler with the card still running reasonable cool with great stability.