Which is better in performance

[engterry]

Asus HD radeon 7850 direct cu ii top
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121650

Sapphire 7850 OC
http://www.amazon.com/Sapphire-Radeon-PCI-Express-Graphics-11200-14-20G/dp/B008MJHS8I/ref=sr_1_2?ie=UTF8&qid=1353364325&sr=8-2&keywords=sapphire+7850+oc

gigabyte 7850 OC
http://www.amazon.com/Gigabyte-mini-Displayport-PCI-Express-Graphic-GV-R785OC-2GD/dp/B007PJTNYS/ref=sr_1_1?s=electronics&ie=UTF8&qid=1353364380&sr=1-1&keywords=gigabyte+7850+oc

 

[ko888]

Asus HD radeon 7850 direct cu ii top
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121650

Sapphire 7850 OC
http://www.amazon.com/Sapphire-Radeon-PCI-Express-Graphics-11200-14-20G/dp/B008MJHS8I/ref=sr_1_2?ie=UTF8&qid=1353364325&sr=8-2&keywords=sapphire+7850+oc

gigabyte 7850 OC
http://www.amazon.com/Gigabyte-mini-Displayport-PCI-Express-Graphic-GV-R785OC-2GD/dp/B007PJTNYS/ref=sr_1_1?s=electronics&ie=UTF8&qid=1353364380&sr=1-1&keywords=gigabyte+7850+oc

Right out of the box the ASUS HD7850-DC2T-2GD5-V2 is the faster card because it has the highest factory overclock of the three cards you've linked to.