Official system requirements
In order to run Quake 3 Arena, your PC must meet or exceed the following requirements[3]
3-D Hardware Accelerator with full OpenGL support
Pentium 233Mhz MMX processor with 8 MiB video card, or Pentium II 266Mhz processor with 4 MiB video card, or AMD 350Mhz K6-2 processor with 4 MiB video card
64 MiB of RAM
60MiB hard disk space (25 MiB for minimum install + 45 MiB for swap file)
4X CD-ROM drive (600KB/s)
Internet play requires a 100% Windows 95/98/NT 4.0-compatible 28.8 Kbps (or faster) modem
Good system requirements
Pentium II 400Mhz processor with 16 MiB Video Card or AMD 600 MHz processor with 16 MiB Video Card
DirectX 3.0 or higher compatible sound card
128 kbps modem
Awesome system requirement
Voodoo 5 or Geforce 2 GTS
Pentium 800Mhz or AMD equivalent
512 MiB RAM
700 MiB hard disk space
ADSL modem (512 kbps)