The new Sapphire HD7770 Vapor X Overclock Edition is their first card in this generation to use the Sapphire Vapor Chamber cooling technology. This core on this card is overclocked to 1,100mhz and the memory runs at 1,300mhz (5.2GB/s effective).
Read the review here: http://www.kitguru.net/components/graphic-cards/zardon/sapphire-hd7770-vapor-x-overclock-edition-review/
Read the review here: http://www.kitguru.net/
