This is *NOT* a graphics card issue. If it was your graphics card the game would continue to push it until your PC forces a crash. I know this because I use to use a card that barely passed the minimum requirements and it would do this.
The OUT OF MEMORY issue coming when seen in the bug report is due to a lack of RAM. You will need anywhere in the ball park of 4GB + to properly run this game on any non-restrictions. You technically can mod it to run on 2GB but will get this out of memory crash a lot.