Fallout: New Vegas - Version Face-Off

Eurogamer has one of their Face-Off articles comparing and testing the different versions of Fallout: New Vegas.  On the whole, the X360 seems to have the goods on the PS3 version and the PC version is best, although they think it needs a lot of tweaking to get it to run well (not my personal experience).  A snip on the PC version:

As the technology that powers the game is basically so ancient, you won't need a particularly powerful PC to run it. A dual-core CPU along with something along the lines of a 9800GT should serve you well. However, if you do buy the PC game, you should expect to find yourself consulting enthusiast sites to get the game running decently on your setup.

Two years ago, we played Fallout 3 on a 2.4GHz Q6600 quad-core system with 2GB RAM and a 512MB NVIDIA 8800GT. Our New Vegas rig was a 3.33GHz overclocked i7 working in combination with the awesome might of an NVIDIA GTX480 and utilising 3GB RAM. And performance wasn't much better. It seems that the Gamebryo tech that powers both Oblivion and Fallout 3/New Vegas hasn't really evolved much over the years, and manually fiddling about with the game's .ini files is the only way to iron out performance kinks and get a smooth gameplay experience.