Buy GPU, Buy Waterblock, buy pump, buy resevoir, but radiator, and buy Tubing. Silent GPU achieved.
I think of the GTX 670 for an "enthusiast" card at a decent price. My GTX 680 is quiet under load and perfect for anything at 19x10, but the 670 is almost as fast and $100 less.
...Also for reference, a 3dba increase is about 2x noise level. 10dba is 10x as loud.
No. And no. At least from the perceived level increase. (The acoustic power level calc would be correct, but we don't hear volume linearly, our ears are wired for a logarithmic volume experience.)
+3 dB = twice the power
+6 dB = twice the amplitude
+10 dB = twice the perceived volume or twice as loud (Loudness sensed − psychoacoustics)
10dB increase is perceived as twice as loud, not 3dB, which is perceived as a small increase. Sorry for the harping on the petty details, but it's a tech site, so someone has to keep their ear on the decibel meter. Sadly, today, it was me.
No. And no. At least from the perceived level increase. (The acoustic power level calc would be correct, but we don't hear volume linearly, our ears are wired for a logarithmic volume experience.)
+3 dB = twice the power
+6 dB = twice the amplitude
+10 dB = twice the perceived volume or twice as loud (Loudness sensed − psychoacoustics)
10dB increase is perceived as twice as loud, not 3dB, which is perceived as a small increase. Sorry for the harping on the petty details, but it's a tech site, so someone has to keep their ear on the decibel meter. Sadly, today, it was me.
I'll second the 670 DCII recommendation. They are very quiet cards even with the stock fan profile, hell they aren't even that loud in SLI under load. The cooler is not only quiet but also keeps the cards cool very well.
Under load in SLI my top card is 76-80c and the bottom one is 62-66 and this is with relatively high ambient of anywhere from 25 to 28C.