ASUS ROG GeForce GTX 760x2 4GB 512-Bit GDDR5 PCI Express 3.0 HDCP Ready SLI Support Video Card Model MARS760-4GD5 Mfr Part Number: MARS760-4GD5 Chipset: NVIDIA GeForce GTX 760x2 Core Clock: 1006 MHz Boost Clock: 1072 MHz Video Memory: 4GB GDDR5