Acer Predator XB252Q 240Hz Monitor Review

Viewing Angles, Uniformity, Response, Lag & Gaming Tests

Viewing Angles

A small screen like the XB252Q doesn’t suffer too much from TN technology’s poor viewing angles. It looks far worse in photos like this than in actual use. And this is one of the best examples we’ve seen. But you should sit on-center for best results. At normal distances, the entire screen stays solid with no visible issues at the edges. As soon as you move to 45°, however, a red/green color shift and significant light falloff becomes obvious. From the top, there’s no change in hue, but detail gets washed out with only 9 of 11 steps visible. If off-axis quality is a high priority for you, only IPS will do.

Screen Uniformity

To learn how we measure screen uniformity, please click here.

Image 1 of 3

Not all XB252Q samples will measure the same, but ours shows exemplary performance in the uniformity tests. All the field patterns are visually perfect with no hotspots, backlight bleed, color shift, or cloudiness evident. Color uniformity is especially good at only a tiny .57dE variation in values. It doesn’t get much better than this.

Pixel Response & Input Lag

Please click here to read up on our pixel response and input lag testing procedures.

Image 1 of 2

The XB252Q’s closest competitor manages to squeak out a 1ms victory in the screen draw test. That’ll be invisible to anyone as will the 6ms difference in overall input lag we measured. It would likely require super-human reflexes to pick out 20 versus 26ms in control latency. 240Hz is as fast as it gets right now and our tests support that. This is why competitive gamers choose speed over resolution. And that is further supported by our gaming experience, which we’ll share with you now.

Gaming With G-Sync & ULMB

For those of you still concerned about the XB272Q’s resolution, don’t be. Once you see it in action in your favorite game, pixel density just won’t matter. When you can sustain a framerate over 180 FPS, it’s obvious that maintaining clarity during fast-moving action has a far greater impact on the experience than the number of dots on the screen.

Starting with Tomb Raider, we saw consistent speeds of 160 FPS or more with detail on its maximum setting. We kept overdrive on Normal to prevent ghosting. In this case, the Extreme setting manifested as black lines around moving objects. With G-Sync turned on, there was nothing but perfection; no motion blur, no tearing, no stutter. Just smooth motion and instant response to control inputs. Our only wish was for more contrast, but in its calibrated state, the XB252Q showed us all the detail without any loss of clarity in highlight or shadow areas.

Moving on to Far Cry 4, again at max detail, we saw slightly lower speeds in the 140 FPS range. We couldn’t say it made a palpable difference, as everything seemed equally smooth and sharp. There was still nary a hint of blur or stutter, and the framerate never dropped below 100. Watching the tiny details like moving grass and blowing leaves reminded us why this game has won so many awards and why it’s still a benchmark title after nearly three years.

We also booted up our copy of Bioshock: Infinite, just to check out its steam-punk inspired universe. The graphics are far simpler and even on max detail, we saw 240 FPS most of the time. Control inputs are instantaneous; we had to tweak the mouse settings just to avoid moving too quickly through detailed scenes. We could move incredibly fast here without even the suggestion of motion blur.

Can you truly see a benefit to an IPS/QHD display over this one? The answer is, it depends on the title. If your preference is for slower-moving games with lush and detailed environments, those extra pixels will improve image quality. But when speed and response are key, nothing will match the performance of the XB252Q or its cousin, the Asus PG258Q.

MORE: Best Gaming Monitors

MORE: Best Professional Monitors

MORE: How We Test Monitors

MORE: How To Choose A Monitor

MORE: All Monitor Content