It's plausible only because it is a G92 core. I'm strongly suspecting this was a rare one off edition that Galaxy had acquired. Don't expect it to be commonplace.
The GSO may have a 192bit bus and slightly lower clock speeds than the 9600GT, but it also has 96 shader processors of the G92 core, while the 9600GT only has 64sp. Also, the 8800GT G92 has only 112sp, while the 8800GTS G92 has 128. They have unlocked it to 128sp, not 112.
The point is it looks too good to be true, but we'll wait and see. I'll keep an eye out @vr-zone, maybe shamino can cook up another modding guide