In order for you to play Unreal Tournament 2004: Editor's Choice Edition on Windows with minimal graphics settings, your computer must meet the following requirements
Supported OS:
Windows 2000/XP
Processor (CPU):
Pentium III 1.0 GHz or AMD Athlon 1.0 GHz or faster (Pentium® or AMD 1.2GHz or greater recommended)
Memory (RAM):
128MB RAM (256MB RAM or greater recommended)
Graphics Card:
32 MB video card required (64 MB NVIDIA or ATI hardware T&L card recommended)
Sound:
Windows-compatible sound card
DirectX:
DirectX 9.0b
Hard Disk Space:
5.5 GB Free
Multiplayer:
Internet (TCP/IP) and LAN (TCP/IP) play supported. Internet play requires a 33.6 kbps or faster modem (broadband recommended)