AMD today announced the Radeon Pro Vega II and Pro Vega II Duo graphics cards, making their debut with the new Apple Mac Pro workstation.

AMD Radeon Pro Vega II GPUs provide high computational performance by harnessing 7nm AMD Radeon Vega family GPUs, ultra-fast High Bandwidth Memory (HBM2), and AMD Infinity Fabric Link GPU interconnect technology that enhances data-transfer speeds between GPUs. Providing up to 14 TFLOPS of single-precision floating-point (FP32) performance and up to 28 TFLOPS of half-precision floating-point (FP16) performance, AMD Radeon Pro Vega II GPUs are optimized for powering demanding professional applications.

Based on an enhanced 32 GB variant of the 7 nm "Vega 20" MCM, the Radeon Pro Vega II features 4,096 stream processors, 1.70 GHz peak engine clock, 32 GB of 4096-bit HBM2 memory, and 1 TB/s of memory bandwidth. The card comes with both PCI-Express 3.0 x16 and InfinityFabric interfaces.

The Radeon Pro Vega II Duo is a dual-GPU graphics card. Purpose built for the Mac Pro, this card puts two fully unlocked "Vega 20" MCMs with 32 GB HBM2 memory each on a single PCB. The card uses a PCI-Express bridge chip to connect the two GPUs to the system bus, but in addition, has an 84.5 GB/s InfinityFabric link running between the two GPUs, for rapid memory access, GPU and memory virtualization, and interoperability between the two GPUs, bypassing the host system bus.

The two graphics cards are only available as options for the Apple Mac Pro. The single-GPU Pro Vega II may see standalone product availability later this year, but the Pro Vega II Duo will remain a Mac Pro-exclusive.