Definitely the same font on Mac, same styling at the top of the 1 and the same exact curves and lines on the 2.
I am fairly certain these are also the same font sizes.
So if it's real it appears to be a PC-only thing. Probably some kind of update in Windows making default fonts different or font sizes larger. If so, you should begin noticing the same thing on other websites. You should also consider switching to a quality OS (i.e. Mac).
"On laptop" made me chuckle. There is no such thing as a laptop only issue like this. There might be some problem with your specific laptop vs your specific desktop, but not all laptops vs all desktops. Laptops/desktops are the same thing in a different form factor -- unlike Tablets/Phones which have a different OS.
Edited 6/10/2016 01:31:02