I don't know about the celeron, but I have the QL62 in my laptop and it handles low end games quite well. I play Heroes of might and Majic III, IV, and V regularly.
I should mention that the QL-62 gets quite hot while streaming video.
Proably either CPU is capable, for gaming I would be more interested in the graphics chip provided. I have a nVidia 8200M for comparison.