I don't think that it'll be that bad. I can run Sam and Max: The Devils Playhouse at about 5 without any problems. Here's what I got:
CPU- AMD Athlon II P320 Dual-Core Processor
CPU Speed- 2.09 GHz
OS- Windows 7 Home, 64 bit
Video Card- ATI Display ATI display adapter (0x9712), Video RAM 1.4GB, Pixel Shader 4.0
Sound Card- Realtek High Def. Audio
Free Disk Space- 166.7 GB
These are my laptop specs. as reported by Can You Run it?