3

The S.T.A.L.K.E.R.: Clear Sky Website shows this as the system requirements for GSC Game World's upcoming shooter prequel:

MINIMAL

• Microsoft Windows 2000(SP4)/XP/Vista (SP1)
• Intel Pentium 4 2.0 Ghz / AMD XP 2200+
• 512 MB RAM
• 10 GB free hard disc space
• 128 MB DirectX 8.0 compatible card / nVIDIA GeForce 5700 / ATI Radeon 9600
• Keyboard, Mouse
• LAN / Internet for Multiplayer

RECOMMENDED

• Microsoft Windows XP/Vista (SP1)
• Intel Core 2 Duo E6400 / AMD 64 X2 4200+
• 1.5 GB RAM
• 10 GB free hard disc space
• 256 MB DirectX 9.0c compatible card / nVIDIA GeForce 8800 GT / ATI Radeon HD 2900 XT
• Keyboard, Mouse
• LAN / Internet for Multiplayer

Guru3D Graphics cards used:

• GeForce GTX 280 1024MB BFG OCX
• GeForce GTX 280 1024MB
• Radeon HD 4870 X2 2048MB
• Radeon HD 4870 512MB
• GeForce 9800 GTX+ 512MB
• Radeon HD 4850 512MB
• GeForce 9800 GTX 512MB
• GeForce 8800 GT 512MB
• Radeon HD 3870 512MB
• GeForce 9600 GT 512MB
• Radeon HD 4670 512MB
• GeForce 8600 GTS 256MB
• GeForce 8600 GT 256MB

For AMD ATI cards:

• Windows Vista Business 32-bit SP1
• ATA Catalyst 8.8
• Intel X38 mainboard
• 2 GB DDR3 1066 MHz
• Core 2 Duo E8400 3.0 GHz / 1333 FSB)

For NVIDIA GeForce cards:

• Windows Vista Business 32-bit SP1
• GeForce Forceware 175.19 WHQL
• nForce 680i SLI  mainboard
• 2 GB DDR2 1066MHz
• Core 2 Duo E8400 3.0 GHz / 1333 FSB)