The highest display resolution of the ZBook 17 is 1920 x 1080 pixels. That's 98% more display resolution than the most common display resolution of 1366 x 768 pixels.
This laptop's display resolution (1920 x 1080 pixels) is actually the best display resolution amongst all many processor core laptops that have been available for a similar time to the ZBook 17.
The worst display resolution across similar types of laptop is 1366 x 768 pixels.
There are a number of alternative portable PCs that have a display resolution of 1920 x 1080 pixels currently available that you might want to consider including because of it's better review score, the N56VJ, or the U500VZ (£649.99) both from Asus.