PNY Quadro NVS 310 VCNVS310DVI-PB 512MB 64-bit DDR3 PCI Express 2.0 x16 Workstation Video Card Chipset Manufacturer: NVIDIA CUDA Cores: 48 DirectX: DirectX 11 OpenGL: OpenGL 4.1 DisplayPort: 2 RAMDAC: 400 MHz Digital Resolution: Maximum DP Digital Resolution: 2560 x 1600 at 60Hz Maximum DVI Digital Resolution: 1920 x 1200 at 60Hz Max Displays Per Board: 2