On Tuesday, Apple rolled out three new graphics card modules for the Intel-based Mac Pro, all based on AMD’s Radeon Pro W6000 series GPU. From a report: (Apple posted a Mac Pro performance white paper [PDF] to celebrate.) The new modules (in Apple’s MPX format) come in three variants, with a Radeon Pro W6800X, two W6800X GPUs, and the W6900X. Each module also adds four Thunderbolt 3 ports and an HDMI 2 port to the Mac Pro. The Mac Pro supports two MPX modules, so you could pop in two of the dual-GPU modules to max out performance. They can connect using AMD’s Infinity Fabric Link, which can connect up to four GPUs to communicate with one another via a super-fast connection with much more bandwidth than is available via the PCIe bus.