Depends on which GTS version you are talking about :S
There are 3 generations of the 8800GTS:
The first one is the aforementionned G80 with 96SP which is definately slower, available in both 320MB and 640MB.
The second one is the G80 with 112SP which is only available in 640MB and practically the same as the GT except that it performs better on higher resolutions.
Tbe third one is the G92 with 128SP, which will be available in both 512MB and 1GB. This one is supposed to come out mid december. You can pretty much guess that this one will be a lot better than the GT, but for around twice the price.
They all are 8800GTS and the only way to tell them apart is to look at the spec. The new gen will be easier to spot because of the memory sizes.
There are 3 generations of the 8800GTS:
The first one is the aforementionned G80 with 96SP which is definately slower, available in both 320MB and 640MB.
The second one is the G80 with 112SP which is only available in 640MB and practically the same as the GT except that it performs better on higher resolutions.
Tbe third one is the G92 with 128SP, which will be available in both 512MB and 1GB. This one is supposed to come out mid december. You can pretty much guess that this one will be a lot better than the GT, but for around twice the price.
They all are 8800GTS and the only way to tell them apart is to look at the spec. The new gen will be easier to spot because of the memory sizes.