K-Oicks said: One is reference and the other is not. You can flash/unlock shaders on the reference one : http://www.amazon.com/Sapphire-DL-DVI-I-SL-DVI-D-PCI-Express-100312SR/dp/B004FPYJFI/ref=sr_1_1?ie=UTF8&qid=1303237924&sr=8-1
jyjjy said: http://www.techpowerup.com/articles/overclocking/vidcard/159
jyjjy said: Oh, the reference model has a closed design with a box like shape and a single fan at the end of the card. Like so;http://boomnews.info/wp-content/uploads/2010/12/de2ae83b63420-90.jpg.jpgThey all look the same apart from the various decals the different manufacturers place on the card.