Gigabyte AMD Radeon R9 Nano 4096-Bit 4GB HBM PCI Express Graphic Cards GV-R9NANO-4GD-B Powered by AMD Radeon R9 NANO GPU Integrated with 4GB 4096-bit High Bandwidth Memory (HBM) Core Clock: Up to 1000MHz Features HDMI / DisplayPort3 System power supply requirement: 600W Supporting multiple independent display outputs simultaneously, AMD Eyefinity technology delivers innovative graphics display capabilities enabling massive desktop workspaces and ultra-immersive visual environments for the ultimate panoramic computing experience.