All but one of Samsung's seven 13-inch Ultrabook models come with Intel HD 4000 Graphics. The odd man out is the ATIV Book 9 model NP900X3D, which comes with a 1.4 GHz Intel Core i5 2537M CPU with Intel HD Graphics 3000 and 1600x900 maximum resolution. Resolution of Samsung's $1,399 high-end model tops out at 1920x1080, full HD.
Native resolution of the 13-inch MacBook Air is 1440x900. All MacBook Air models come with Intel HD 5000 Graphics, which supports mirroring or simultaneous display of full native resolution of the built-in display plus a maximum for external monitors of 2560x1600. MacBooks include Thunderbolt, a multi-talented digital output port that supports DisplayPort, DVI, dual-link DVI, VGA and HDMI with optional adapters. Thunderbolt also can connect to FireWire and Ethernet at speeds up to 10 Gbps.