Given that Doom III really does look like a considerable step forward for PC gaming, both technically and in terms of gameplay, it comes as a surprise that the system requirements aren’t as high as perhaps some had predicted.
Indeed, the requirements are:
Minimum:
CPU: 800 MHZ - 1 GHZ
GeForce 3 TI/ATi 9600 Pro
RAM: 256 MB RAM
Standard:
CPU: 1,7GHZ-2GHZ
GeForce 4 TI 4400/4600/ATi 9700/Pro
RAM: 512 MB RAM
Optimal:
CPU: 2.5 GHZ - 2.8 GHZ
GeForce 5800FX/5900FX/ATi 9800 Pro
RAM: 786-1024 MB RAM
This should mean that anyone with a relatively modern GPU who has bought a machine in the last 18 months is in for a treat later this year. Excellent news.