Help gan, cocok yg mana dgn i5-3470 & ECS X77 A2-H3 : :bingungs 1. Zotac GTX 650 ti Boost 2048 MB DDR5 192-bit 2. Zotac GTX G50 ti AMP! 2048 MB DDR5 128-bit 3. Sapphire HD 7790 Dual X-OC 1024 MB DDR5 128-bit
