PES 2011 Demo System Requirements:

MINIMUM SYSTEM REQUIREMENTS:
Windows XP SP3, Vista SP2, 7
Intel Pentium IV 2.4GHz or equivalent processor
1GB RAM
8GB free hard disk space
4x DVD-ROM Drive
DirectX 9.0c compatible video card. 128MB Pixel Shader 3.0 (NVIDIA GeForce 6600 or AMD/ATI Radeon x1300 video card)
DirectX 9.0c compatible sound card
DirectX 9.0c or higher (included on Disc)
Multiplayer: TCP/IP 192 kbps or higher
Windows compatible keyboard
800 x 600 monitor resolution

RECOMMENDED SYSTEM REQUIREMENTS:
Windows XP SP3, Vista SP2, 7
Intel Core2 Duo 2.0GHz or equivalent processor
2GB RAM
8GB free hard disk space
8x DVD-ROM Drive
DirectX 9.0c compatible video card. 512MB Pixel Shader 3.0 (NVIDIA GeForce 7900 or AMD/ATI Radeon HD2400 or better)
DirectX 9.0c compatible sound card
DirectX 9.0c or higher (included on Disc)
Multiplayer: TCP/IP Broadband Internet connection
Windows compatible USB Gamepad
1280 x 720 monitor resolution

SUPPORTED CHIPSETS:
NVIDIA - GeForce GTX285, 9800, 8800, 8600, 7950, 7900, 7800, 7300, 6800, 6600
AMD/ATI - Radeon HD5850, HD5770, HD4870, HD4650, HD3870, HD2600, HD2400, X1900, X1650, X1600, X1300