Techradar posted a review on the Zotac GT 640 ZONE graphics card

Silence, they say, is golden. Personally I'm more concerned with gaming frame rates, but when something comes around offering zero dB sound levels and decent gaming speed, I'm going to sit up and take notice. And Zotac's GT 640 Zone is certainly making me take notice.

Now, I'm not saying that this is a proper gaming card on par with the likes of the HD 7770 or HD 6850, but considering its stealth credentials and bargain sticker price, it's certainly worth a look in specific circumstances.

And what might those be, I hear you ask in the shadowy recesses of my head? Well, we've been checking out the power of the modern mini PC, and this would be an ideal card for a little chassis that you're keeping in the lounge. Y'know, somewhere you don't want to be filled with the sound of a jet turbine on full afterburn every time you boot up a 3D game.

  Zotac GT 640 ZONE Review