Source: http://www.anandtech.com/show/4429/comp ... -slot-gpus
Some highlights:
Zotac 520 ZONE Edition
Sparkle GTS 450
(and or course) PowerColor HD 6850 SCS3
Round-up of passive cards from Computex 2011 @ Anandtech
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee