MY Ideal requirements for the game for smooth performance 
 CPU: 266MHz Pentium II/III/Celeron class MMX/SSE or MHz AMD K6/K6-2/K6-3/K7 w/ MMX/3d Now!/Enhanced 3d Now!
              
    
* NV10/Voodoo/Savage4 and other are going to be supporting D3TC (S3TC) in the near future, a future of which Duke Nukem Forever will be released.
 Memory: 64MB Ram < or = to 60ns
 12x CD-ROM drive or higher (trust me, you'll need it)
 Windows 95/98 compatible 16-bit 3d sound card (preferably Creative SB AWE 64, 128, 256, 512 voices, or Live or other = brands
 Video: PCI/AGP (1x, 2x, 4x+) 8+ meg local bus, RAMDAC 150mhz+ w/ graphic accelerator
 DirectX6.1/7+
 OS: Windows 95/98 or NT w/SP3 Network and Internet play: TCP/IP 56k v.90 modem or higher/ISDN/T1+/cable/DSL