I've noticed a lack of personal reviews on specific hardware for macs, specifically the stock rev. B Dual 1.8 Ghz G5 with the FX5200 video card. I was inspired by my desire for a balance between game performance/image quality running on the above hardware. This thread will not touch on the game play or multiplayer aspects. Ok, so just to be specific, this thread is really only useful for Doomers who have similar hardware to mine and really want to find the best settings to play DOOM 3. The hardware specs are as follows: PowerMac Dual 1.8 GHz G5, Rev. B with 4 DIMM slots 1.25 GB RAM (Upgraded up from 256MB) Nvidia GeForce FX5200 64MB RAM Mac OSX Panther 10.3.8 DOOM 3 for Mac. ver.1.1 Here are the results of various image quality and fps performance benchmarks. All advanced options on, including shadows. FSAA and v.sync off by default. (FPS results based on a second run of "timedemo demo1") 640x480 Resolution - 22.2 FPS High Quality - 27.1 FPS Medium Quality - 39.1 FPS Medium Quality, (shadows OFF) - 26.9 FPS Low Quality 800x600 Resolution - 19.8 FPS High Quality - 22.3 FPS Medium Quality - 31.5 FPS Medium Quality, (shadows OFF) - 22.2 FPS Low Quality 1024x768 Resolution - 13.7 FPS High Quality - 15.0 FPS Medium Quality - 22.0 FPS Medium Quality, (shadows OFF) - 15.0 FPS Low Quality Conclusion: From the frame rates posted, image quality set at MEDIUM has no negative impact on game performance compared to LOW. Setting at medium quality does not tax the video card's memory. If you set to High Quality, you will definitely experience A LOT of stuttering as the video card has to dump memory to fill in the new textures. The best setting to play DOOM 3 is 800x600 Medium Quality with Shadows turned OFF. This provides average 30 fps and 15 fps during intense firefights. If you *need* shadows, the best setting to play DOOM 3 is 640x480 Medium Quality. If ultimate FPS performance is required, 640x480 Medium Quality with shadows turned off will provide +40 FPS. Still, DOOM3 is very playable on the above hardware (especially on a $15 video chip) and switching to an X800 or NV6800 should provide at least a 1.5x-3x performance increase. How much more is the question. Barefeats.com shows a scant 10+ fps on a Radeon 9800SE, and 24+ fps on a X800 but that's with a Dual 2.5 GHz G5. This tells me that Apple's OpenGL implementation and video drivers need a massive update. Until that happens, upgrading to top-tier video cards seems out of the question at the moment. If anyone owns a Dual G5 1.8 Ghz and a X800 or GE6800, please report your findings. So theres my small review. Feel free to ask any questions.