Aside from GeChic's On-Lap 2501M, this is the only TN monitor we’ve tested this year. Off-axis viewing is the weak point of any non-IPS or PLS screen. For a high-refresh rate display like the VG248QE though, TN is the best choice for stability and fast screen draw performance.
Side to side, the image quality is pretty solid. There is a little discoloration in the brighter signal areas, but blacks remain stable and you can still tell the darkest bars apart. Top to bottom is another story. Viewed from 45 degrees below the screen center, the image is almost completely wiped out. From 45 degrees above, the bars are very light, though still defined. When we shoot these photos, we set our camera to manual exposure so each shot is taken with the same aperture and shutter speed. The side to side performance is exceptional for a TN screen. The top to bottom is fairly typical.
To measure screen uniformity, zero percent and 100 percent full-field patterns are used, and nine points are sampled. In a change from previous reviews, we’re now comparing the results to other monitors we’ve measured. First, we establish a baseline measurement at the center of each screen. Then the surrounding eight points are measured and their values expressed as a percentage of the baseline, either above or below. This number gets averaged. It is important to remember that we only test the review sample each vendor submits. Other examples of the same monitor can measure differently in this metric.
First up is black field uniformity:

Out of the 12 monitors we’ve reviewed this year, exactly half are above 10 percent and the other half are below. At 7.98, the Asus is comfortably in the better-performing segment. You shouldn't see any bright or dark spots in a black field.
Here’s the white field measurement:

Looking at the 100-percent white field, there's a slight hotspot in the center of the screen and a slight dark area in the upper-left. These are admittedly pretty minor, and don't impact the quality of content.
Screen Uniformity: Color
Starting with our review of the AOC Q2963PM, we added a new uniformity test to our benchmark suite: color. The above measurements only address luminance. Now we’re measuring the white balance variation in an 80-percent white field pattern. The results are expressed as a variation in Delta E, in other words, the difference between the highest and lowest value.

Since this metric is so new, we only have results for the last three monitors we reviewed. With a Delta E variation of only .29, the VG248QE performs extremely well. There is no visible variation in color at any point on the screen.
- Asus VG248QE At 144 Hz, For The Speed-Obsessed
- Packaging, Physical Layout, And Accessories
- OSD Setup And Calibration
- Measurement And Calibration Methodology: How We Test
- Results: Brightness And Contrast
- Results: Grayscale Tracking And Gamma Response
- Results: Color Gamut And Performance
- Results: Viewing Angle And Uniformity
- Results: Pixel Response And Input Lag
- Is Asus' VG248QE Fast Enough?

IPS is much better then TN
CaptainTom, 1ms makes a huge difference over 5ms. I didn't think it would at first until I bought one of these. Next to my old 24" HDTV that was my monitor for awhile, the difference is insane.
ICC profile is use is here: http://pcmonitors.info/reviews/asus-vg248qe
These high refresh rate monitors offer an incredible performance boost for first-person shooters if you have video cards that can produce frame rates close to the high refresh rates (or higher than 60Hz consistently). I've tried 1440p 60Hz monitors and can't stand the lower refresh. I've tried 60Hz surround setups and can't stand the low refresh. Once you go to these monitors, you develop a need for them. Nothing with lower refresh rates compares any longer. If you've never had it, you don't miss it and don't know what you're missing.
If you don't have the kind of GPU power to consistently get you beyond the 60fps mark at 1080p, 60Hz monitors are the way to go. I still wouldn't settle for cheap IPS monitors with crappy contrast ratios though. For shooters, the input lag is also a terrible characteristic of the cheap IPS monitor.
2 Titans for 1980x1080 resolution? That's a bit silly. You have spent $2000 for video cards and you are gaming on one 1980x1080 24 inch monitor!
You should have at least 3 of these monitors for a surround set-up.
Also - does anyone own one of these and notice that opening Pictures come up darker/dimmer than they look as thumbnails or in image preview??
ASUS... could you pretty please make us a 144 Hz 1440p IPS screen ??????
ASUS... could you pretty please make us a 144 Hz 1440p IPS screen ??????
I second the 'pretty please'.
I would prefer the best of both worlds, but I don't think current graphics cards are quite up to the task. (At least not for less than a $2500 machine) Current IPS panels out there can pull the hz, but can't match the response times just yet.
Add in the fact that the industry will be pushing for 4k soon, and you can kiss 120hz goodbye for a while.