The highest contrast ratio of the Asus VX279 is 80000000:1. That's over sixteen times the contrast ratio of a 5000000:1 LCD screen, which is the most common contrast ratio. The worst contrast ratio of all medium monitors that have been available for around the same time as the VX279 is Mega Contrast and the best is 100000000:1.
It may also be worth also looking at one of the other PC displays that have an 80000000:1 dynamic contrast ratio currently available including the VC279H, or the MX259 ($130.00) both from Asus or the Philips 242G5DJEB which has a better Rating.
If you would prefer a PC display with a higher contrast ratio then you might also want to consider the Acer K242HQK (100000000:1) which also has a higher rating.