MSI GTX 680 4GB TW FRO III OC MSI NVIDIA GEFORCE GTX 680 GRAPHICS CARD 4GB 1536 CUDA CORES MEMORY INTERFACE 256 BIT GDDR5 6GB/S PCI-E 3.0 X16 TWIN FROZRIII SERIES (
Refurbished: EVGA GeForce GTX 680 MAC 4GB 256-Bit GDDR5 PCI Express 2.0 Video Card Support Apple system and Win dual system... Apple system driver free - Newegg.com