cant speak for the other cards, but my gigabyte windforce is great. while the fans never turn off when idle like some of the other models, this doesn't pose any problem for my case, i can't ever hear it unless i put my ear up to the case. i have mine overclocked to 1526 MHz on the core (actually had it higher, but backed it down a bit) and 8002 MHz mem. i can (and have) run benchmarks for hours, while tweaking and still never hit 75C. and the one i have is actually the lower model, not the g1 gaming