The Z68 Extreme4 Gen3's LGA1155 CPU socket supports any Intel Core i3, i5 or i7 processor in the LGA1155 package while its 4 DIMM slots can handle up to 32GB of DDR3 RAM with data transfer rates of 2133(OC), 1866(OC), 1600, 1333 and 1066 MHz. Its PCI-E 3.0 slots provide the Z68 Extreme4 Gen3 with a higher bitrate than PCI-E 2.0 (8.0GT/s) with higher bandwidth per lane (1GB/s) when equipped with an Ivy Bridge processor (when equipped with a Sandy Bridge processor, the 3.0 slots will behave like 2.0 slots). Meanwhile, the Z68 Extreme4 Gen3's AMD 3-way CrossFireX and Nvidia 3-way SLI support allows for extended graphical expansion and high-end graphical capability.