Sapphire rX Vega 64 Nitro - back-sided heatsink with Vapor Chamber-based Cooling + Turbine-X cooling control for extra 2 PWM fans in PC + gear card weight support bracket ( to prevent PCI-Express slot damage or PCB bending ) + FRTC (Frame Rate Target Control ), 2 slots required , Pci-E 16x - 64x compute Units , 64 RoPs , 12665 GigaFLoPs,  395.8GT/s texture fill rate , 4096 stream processors , 256x texture unit , core/memory : 1373/1580mhz , 2048bit 8Gb HBM2 ( transfer rate : 483gb/sec ) , 2x DisplayPort + 2x HDMi , 240w TDP - require 2 x 8pin power connector - 3 years warranty