Orange. Oh and Jeff, you left the 5750 out which is a shame as it is the sweet spot for silent gaming. Fanless 5750 cards are available with or without the 6pin "PCIe" power connector. Take a look at http://www.silentpcreview.com/forums/viewtopic.php?p=505403&highlight=&sid=1b1e93b0ca5858a78c4c24cf8fe5b628#505403 for a comparison of 4xxx cards vs 5xxx cards and the tremendous powersavings the 5750 offers versus the 4850 it replaces. Or read http://www.techpowerup.com/reviews/Powercolor/HD_5750_Go_Green/1.html which unfortunately splits the review up in 32 pages but otherwise is a good comparison of the 5750 vs the other contemporary cards.