Technically, not applicable to this particular product. This is the older GTS (G80 core). The GT model used the newer G92 core, and since it used a smaller process, it put out less heat, which is why they were usually given a single-slot cooler. The newer GTS also had 512MB of RAM, but had a few more shaders activated in the core, making it slightly hotter, and making the double-slot cooler more appropriate.Correct me if I'm wrong, but they only difference between the GTS and GT is that the GTS has better cooling and slightly better performance?