Assassin's Creed – Minimum System Requirements: • OS.: Microsoft Windows XP SP2 x32 or Vista x32 only. • CPU: Dual core processor 2.6 GHz Intel Pentium D or AMD Athlon 64 X2 3800 . • RAM: 1 GB Windows XP / 2 GB Windows Vista. • Graphics: 256 MB DirectX 10.0-compliant video card or DirectX 9.0c-compliant card with Shader Model 3.0 or higher. • Sound Card: DirectX 9.0 or 10.0 compliant sound card. • DirectX: DirectX 9.0c or DirectX 10.0 libraries (included on disc). • ODD: DVD-ROM dual-layer drive or blu-ray disc. • HDD: 11 GB. • Peripheral Support: Keyboard, mouse, optional controller - Xbox 360 Controller for Windows. This product does NOT support Windows 98/ME/2000/NT/XP x64/Vista x64. . Assassin's Creed – Recommended System Specifications:. • CPU: Intel Core 2 Duo 2.2 GHz or AMD Athlon 64 X2 4400 or better. • RAM: 2 GB Windows Xp / 3 GB Windows Vista. • Graphics: ATI HD2900, nVIDIA GeForce 8800. • Sound Card: 5.1 sound card recommended. • Microsoft Xbox 360 controller strongly recommended.