Thank you for the help, I appreciate it.
The crash has most probably nothing to do with the video as in the previous turns, the game itself ran smoothly if the critical phase was passed.
I monitored my laptop during this critical phase : CPU is around 4%, GPU 0%, VRAM 20%, and RAM (16GB) peaks to 70% just before the game gives up.
I was about to purchase extra RAM, but it won't solve the problem if I understand you correctly ?