Here are the minimum and recommended system requirements to run Fallout 3 smoothly and efficiently without any crash, freeze, slowness etc. on any computer;
Minimum System Requirements:
CPU: 2.4 Ghz Intel Pentium 4 or equivalent processorRAM: 1GB System RAM (XP)/ 2GB System RAM (Vista)GPU: Direct X 9.0c compliant video card with 256MB RAM (NVIDIA 6800 or better/ATI X850 or better)DirectX: Direct X 9.0cOS: Windows XP/Vista
Recommended System Requirements:
CPU: Intel Core 2 Duo processorRAM: 2 GB System RAMGPU: Direct X 9.0c compliant video card with 512MB RAM (NVIDIA 8800 series, ATI 3800 series)DirectX: Direct X 9.0cOS: Windows XP/Vista
Please also have a look at other posts under “System Requirements” category to view & check if your computer system is powerful enough to run other games like Fallout 3 smoothly.