I was having crashes every few minutes on a early 2013 macbook pro retina (nvidia GeForce GT 650M 1024 MB), and this dll seems to have fixed quite a bit.
It can be downloaded from http://www.nexusmods.com/newvegas/mods/34778/?
[i]""This .dll file is essentially a light-wrapper for a 'supported' video card's .dll, which tricks the game into configuring its FaceGen software (which was causing a performance problem) in a more efficient manner." (HT @ "4000qails")
This will make your game run nearly like fallout 3 ran on your same computer. Like it should since there was very little visual improvements....
Drop in "fallout new vegas" folder to force the game to use this dll instead. "
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