http://www.srtest.com
Try it out:
1. Select Game.
2. Click "Can You Run It?"
3. Click 'Yes' to pop up window(nothing harmful)
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Civ IV: System Requirements
MINIMUM
* Windows 2000/XP with SP1 or higher
* Intel Pentium 4 or AMD Athlon CPU with at least 1.2 GHZ
* 256 MB RAM
* 64 MB graphics card with Hardware T&L (GeForce 2/Radeon 7500 or better)
* DirectX 7 compatible soundcard
* DVD-ROM drive(Europe only)
* 1.7 GB free hard disk space
RECOMMENDED
* Windows XP with SP1 or higher
* Intel Pentium 4 or AMD Athlon CPU with at least 1.8 GHz
* 512 MB RAM
* 128 MB graphics card with DirectX 8 support (pixel- and vertex shaders)
* DirectX 7 compatible soundcard
* DVD-ROM drive(Europe only)
* 1.7 GB free hard disk space
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Suggested Compatible Video Cards
Please do your own research before purchasing one of these cards.)
$45-$55 Range
(Recommended: SAPPHIRE Radeon 9250 256MB DDR AGP 4X/8X)
$80-$120 Range
(Recommended: POWERCOLOR Radeon 9800SE 256MB 128-bit DDR AGP 4X/8X or AOpen Geforce 6600 256MB 128-bit DDR AGP 4X/8X)
---
Try it out:
1. Select Game.
2. Click "Can You Run It?"
3. Click 'Yes' to pop up window(nothing harmful)
---
Civ IV: System Requirements
MINIMUM
* Windows 2000/XP with SP1 or higher
* Intel Pentium 4 or AMD Athlon CPU with at least 1.2 GHZ
* 256 MB RAM
* 64 MB graphics card with Hardware T&L (GeForce 2/Radeon 7500 or better)
* DirectX 7 compatible soundcard
* DVD-ROM drive(Europe only)
* 1.7 GB free hard disk space
RECOMMENDED
* Windows XP with SP1 or higher
* Intel Pentium 4 or AMD Athlon CPU with at least 1.8 GHz
* 512 MB RAM
* 128 MB graphics card with DirectX 8 support (pixel- and vertex shaders)
* DirectX 7 compatible soundcard
* DVD-ROM drive(Europe only)
* 1.7 GB free hard disk space
---
Suggested Compatible Video Cards

$45-$55 Range
(Recommended: SAPPHIRE Radeon 9250 256MB DDR AGP 4X/8X)
$80-$120 Range
(Recommended: POWERCOLOR Radeon 9800SE 256MB 128-bit DDR AGP 4X/8X or AOpen Geforce 6600 256MB 128-bit DDR AGP 4X/8X)
---