VisionTek ATI Radeon HD 3870 512MB GDDR4. Graphics processor: Radeon HD3870, Maximum resolution: 2560 x 1600 pixels, Parallel processing technology support: CrossFire. Graphic adapter memory: 512 MB, Graphics adapter memory type: GDDR4, Memory bus: 256 bit. Interface type: PCI Express 2.0. DirectX version: 10.1, Shader model version: 4.1. Minimum processor: Intel Pentium 4, Celeron, AMD Athlon 64, AMD Athlon XP, Sempron, Minimum RAM: 1024 MB, Minimum system power supply: 450 W