By default dv7t quad edition ( A3G47AV) comes with a 17.3 inch screen at 1600×900 resolution but if you pay $150 extra you get a full HD resolution at 1920 x 1080. This review is with the higher resolution – the 1920 x 1080 one.
One advantage of the higher resolution is the ability to see more screen area at a time. If you open multiple windows and work on them simultaneously, you may like to get the one with the higher resolution. You can see one website in complete while still space left to open about 75% of another site. Here is how a compare-processors.com and google site look on the same screen.