Here are the Lost Planet 3 System Requirements (Minimum)
CPU: Dual core CPU 2.5 GHz
CPU SPEED: Info
RAM: 3 GB
VIDEO CARD: NVIDIA GeForce 9800 or better, ATI Radeon HD 4770 or better
DEDICATED VIDEO RAM: 512 MB
PIXEL SHADER: 3.0
VERTEX SHADER: 3.0
OS: Windows XP
FREE DISK SPACE: 16 GB
SOUND CARD: Yes

Lost Planet 3 Recommended Requirements
CPU: Quad core 2.7 GHz or better
CPU SPEED: Info
RAM: 8 GB
VIDEO CARD: NVIDIA GeForce GTX 460, ATI Radeon HD 6800 or better
DEDICATED VIDEO RAM: 1024 MB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows 7
FREE DISK SPACE: 16 GB
SOUND CARD: Yes