What's the difference between GT, GS, and GTS nVidia video cards.?

I've seen nVidia cards say nVida GeForce 7900GT/GS/GTS


I was wondering what is the purpose of GT/GS/GTS.


Is there any difference between them?

What's the difference between GT, GS, and GTS nVidia video cards.?
The main difference is clocking power. The GS cards are clocked the lowest, GT is middle, and GTS has the highest clocking power. Therefore the GTS cards will perform the best. However, they also cost the most money.