check your graphics card: $ system_profiler SPDisplaysDataType Graphics/Displays: Intel HD Graphics 4000: Chipset Model: Intel HD Graphics 4000 Type: GPU Bus: Built-In VRAM (Dynamic, Max): 1024 MB Vendor: Intel (0x8086) Device ID: 0x0166 Revision ID: 0x0009 gMux Version: 3.2.19 [3.2.8] Displays: Color LCD: Display Type: Retina LCD Resolution: 2880 x 1800 Retina Retina: Yes Pixel Depth: 32-Bit Color (ARGB8888) Main Display: Yes Mirror: Off Online: Yes Built-In: Yes NVIDIA GeForce GT 650M: Chipset Model: NVIDIA GeForce GT 650M Type: GPU Bus: PCIe PCIe Lane Width: x8 VRAM (Total): 1024 MB Vendor: NVIDIA (0x10de) Device ID: 0x0fd5 Revision ID: 0x00a2 ROM Revision: 3688 gMux Version: 3.2.19 [3.2.8] GPU Engine Specs: 384 coresCUDA Cores Up to 900 MHzGraphics Clock (MHz) Up to 27.2Texture Fill Rate (billion/sec) Memory Specs: DDR3\GDDR5Memory Interface 128bitMemory Interface Width Up to 80.0Memory Bandwidth (GB/sec) Feature Support: 4.4OpenGL 1.1OpenCL PCI Express 2.0, PCI Express 3.0Bus Support YesCertified for Windows 7 DirectX 11, Optimus, PhysX, OpenCL, DirectCompute, 3D Vision, CUDASupported Technologies YesDirectX 11.2* Display Support: 3840 x 2160Maximum Digital Resolution Up to 2048x1536Maximum VGA Resolution YesHDCP YesHDMI 3D Vision Ready Yes3D Blu-Ray |