They're being resized by the BB to 10x7, but if you right-click, hit Properties, and copy/paste the address into a new web page, you can view both images at 1280 x 960. Align the image properly, then just click back and forth between windows to check for differences. You should immediately notice the difference between hangars, trees on the right-hand skyline, the HUD projector, the radar antenna, the water tower framing, etc etc etc.
I can immediately notice the difference at 1600 x 1200, and IMO it's bad enough to make playing less enjoyable, so I have AA on. I wouldn't mind an ingame setting, as most games provide, but I'm fine using the nVidia controls as well.