A 1.5 ghz intel pentium 4. Doom 3 minimum requirements for windows assume having at least microsoft windows 2000/xp (does not support windows vista/7) operating system. The system requirements for roe will most likely be the same as doom 3 itself, basically if you can play doom 3 it's likely you'll have no trouble with the expansion pack.
Here Are The Doom 3 System Requirements (Minimum) Cpu:
We've got a lot of discussion going on in the forums regarding system requirements, so might be interesting to see what other people are 'speculating' in regards to higher up then just the official minimum. Here are the doom system requirements (minimum) cpu: Link to comment share on other sites
Microsoft® Windows® 2000/Xp (Does Not Support Windows Vista/7) Processor:
Developed by id software and released in 2004, the game reintroduces players to the iconic story and world of the doom series.it's full of hellish demons, darkly lit. A video card with at least 128mb ram and pixel shader 1.1 support is required for doom 3. Video card 64mb or better;.
Todd Hollenshead Tells The Houston Chronicle What Hardware Will Be Needed To Play The Pc Shooter, The Score For Which Can Now Be Heard.
Still you can't expect doom to run at 50fps at 1280x1024 with your system, you should have known how much of a system hog doom3 is.! That means a geforce 3 ti 200 or radeon 8500 minimum. Intel pentium iv or better;
Doom 3 System Requirements Revealed, Theme Online.
Pentium iv 1.5 ghz or athlon xp 1500+ processor or higher. Doom 3 has very demanding system requirements — the highest we’ve seen on a mac game to date. Resurrection of evil requires a radeon 9800 pro graphics card with a pentium 4 2.0ghz or athlon xp 2000+ processor to reach the recommended.