As we mentioned above, Titan Quest is predisposed to graphics cards with a lot of TMUs and also belongs to a genre where rather low frame rates are sufficient for comfortable play. 30-40fps should be enough. In 1280x1024 all the graphics cards deliver this frame rate. The Radeon X1800 GTO and the GeForce 7600 GT are slower than that in 1600x1200. However, it’s only with the GeForce 7900 GT that the minimum frame rate isn’t lower than 25fps. You can try to play this game on a Radeon X1900 GT or a Radeon X1800 XL in 1920x1200, but you’ll probably find the game unbearably slow at times.
FSAA can be enabled on the Radeon X1800 XL and, perhaps, on the GeForce 7900 GT, and ATI’s card is faster between the two despite the difference in the number of TMUs (16 against 24). So, if you are upgrading your computer specifically for Titan Quest, you should choose the GeForce 7900 GT in this category. The Radeon X1800 XL is second best here.
Diablo-like hack’n’slash games aren’t very difficult applications for the graphics subsystem to run. It’s enough to have a frame rate of 30-40fps, and only slowdowns to below 20fps are irritating. That’s why the result of the GeForce 7600 GT in 1280x1024 resolution should be considered acceptable. The rest of the cards, unfortunately, cannot yield 25fps even in the “pure speed” mode, not to mention with enabled FSAA. So if you’ve got something other than the GeForce 7600 GT, theses results have no practical meaning for you.