EVGA GeForce GTX 560 Ti DS Superclocked 1024 MB GDDR5 PCI Express 2.0 2DVI/Mini-HDMI SLI Ready Graphics Card, 01G-P3-1567-KR GeForce GTX 560 Ti DS Superclocked with 900 MHz core clock PCI-Express 2.0 1024 MB 256-bit 0.4ns GDDR5 memory 4212 MHz memory clock and 1800 MHz shader clock NVIDIA 2-way SLI ready