Intel HD Graphics 530 or P530 in processor and NVIDIA Quadro® M1000M (2GB or 4GB memory) or M2000M (4GB memory); supports external digital monitor via HDMI, Mini DisplayPort, or Thunderbolt ™; supports four independent displays; Max resolution: 3840×2160@60Hz (DisplayPort via Mini DisplayPort cable); 3840×2160@60Hz (Thunderbolt); 3840×2160@30Hz (HDMI)