I can only see that number justified if it produces a frame each "tic" of the engine, but even that's the product of sloppy design.
I checked it. It's REALLY frames per second. No, I dont have superninja eye skillz, I just forced vsync on in nvidia control panel, and tadaaa, framerate display in the game says 85, instead of the usual 500-700. And even that pisses me off a little, because 85hz isnt the refresh I set the monitor to, at that resolution, its the max refresh rate for that resolution. Mild raeg.
Just wasn't expecting this to do it. It usually takes borderlands or something on UT3 engine at full settings to overheat me.
See, that isnt really the problem here. It's not that the graphics are that demanding, its the opposite. The GPU has an EASY time drawing the frame, does it fast, and happily procedes to the next frame, churning out several hundred frames per second. Even if the cooling is working alright, that can lead to problems sooner or later.
From time to time games do that. The Eve online client did it at one point; the space graphics would tax your GPU normally, but when the screen went black during gating, it would start to render 200 frames or so, and more often than not the vidcard would shut down. In this period of the game a lot of "Eve fried my videocard" posts popped up on their forums, mysteriously.
Please, for the love of god, dont ask me why graphics drivers dont come with a max FPS setting, because the only theory I got is a conspiracy theory. (if we could cap our games at a stable rate, we wouldnt notice our hardware getting old so fast and wouldnt buy new shit that often...)
At any rate, whenever you notice a game doing that, you can help yourself a bit with forcing vsync on.
Oh and btw, if your GPU overheats when displaying demanding stuff... THEN you should worry and maybe open that case and manually clean your fans.