AOC CU34G2X Review, The Best Value Ultrawide Monitor

Specs, Features, Design

Welcome back to the hard brown box. Today we’re taking a look at what I believe is one of the cheapest 3440 by 1441 44 hertz ultra wide monitors on the market, the AOC CU34G2X.

This monitor isn’t the newest monitor going around.

I think it’s been available for the last few months in some countries. Still, given it looks to be one of the best value offerings floating around with these specifications.

I think it’s worth an in-depth review like a lot of more budget-oriented gaming monitors.

This display doesn’t use any groundbreaking technology. It sticks to the same 3440 by 1441 44 hertz curved VA panels that we’ve seen no range of monitors under 10000 over the last year.

It has adaptive sync support with low framerate compensation.

And on the ASE website. There are no bold claims of HDR support or wide gamut colors. So this display is just being positioned as a capable 144-hertz option for gamers.

The key feature here is the price as he sells this monitor for just 440 US dollars, making it one of the cheapest 3440 by 1441 44 hertz monitors on the market.

The first budget displays with these specs launched at over 35000 Indian rupees. So it’s nice to have seen the price dropped steadily over time and now said just 6000 Indian rupees or so above entry-level 100-hertz offerings.

It’s also a great value option in places like Australia monitor pricing is a little crazy here right now, but still given the options, it’s not too bad.

Looking at the build quality, we’re getting a similar design to aocs previous displays just extended for an ultra-wide format.

This AOC CU34G2X means a fairly basic plastic construction combined with black silver and red. There are a few red V shape highlights on the rear.

So a bit of that classic-gamer style coming through. But I don’t think it’s too bad here and overall, I think the design is reasonable for this sort of product.

The standard uses a wide V-shaped base with a slim pillar. I was surprised at how slim the pillow was. It didn’t look suitable for an ultrawide monitor, but when it’s installed, it’s a sturdy standard with a decent range of motion.

We get height adjustability plus tilt and swivel support, which is better than average for a lot of budget displays.

Often in this price category, you stuck with just tilt adjustments. So AOC is providing a bit extra here, which is always nice.

AOC CU34G2X 34

The main downside to the design is a lack of a directional toggle for navigating through the OSD. So we’re stuck with face buttons.

OC provides several features in the OSD, but it’s cumbersome to navigate with the button offerings, so you probably won’t want to mess around too often.

Some of the features here include low blue light modes, Shadow boosting, and even a backlight strobing mode. But spoiler alert, the strobing backlight mode is bad and not worth using the standard array of ports here with two HDMI 2.0 ports, two DisplayPort 1.4 ports, and a four-port USB 3.2 hub, quite decent.

As a reminder, you’ll need to use DisplayPort. If you want to access the full 145-hertz refresh rate on offer here, HDMI 2.0 is limited to 100 hertz.

Response Time Performance

Let’s jump right into some response time numbers starting with the first four overdrive modes off at 144 hertz. We see 9.64 milliseconds greater great average performance, which is reasonable for vas native performance, but not fast enough for 144-hertz refresh rate.

A similar story using the weak mode, we see about a one-millisecond improvement to response times. But this isn’t enough to deliver a good 144-hertz experience.

Using the medium mode, we see another one-millisecond improvement now with an average great a great transition of 7.4 milliseconds.

However, just 62% of transitions complete within a reasonable tolerance of the 6.94-millisecond refresh rate window.

This AOC CU34G2X means that 40% of transitions take longer than a single refresh to complete, which can lead to one frame smearing into the next at 144 hertz.

Because of this, I don’t classify this performance as true 144 hertz decent spirit you were getting here is closer to 120 hertz in visual appearance.

Then there’s also the matter of deep level smearing, which like a lot of VA panels is present on the AOC CU34G2X in this mode.

I described this as moderate deep level smearing. Give it some transitions are in the 15 to the 20-millisecond range, but not up in the 30 plus range as the worst offenders offer.

This is a known weakness of rear panels and something hard to avoid.

I focused on the medium mode here because the strong mode is unusable due to high levels of overshoot.

This response time pattern is quite unusual with some transitions in the seven-millisecond range, and others in the one millisecond range.

But I’ve verified this multiple times, and the results are highly dependent on whether the exact transition has overshoot or not, but in any case, not a mode I’d recommend.

So if we returned to the medium mode. As I said, we’re not getting a true 144-hertz experience.

And it would have been nice if there was a mode between medium and strong. They’re pushed up performance just that bit to give us at least 70 to 80% refund refresh rate compliance.

But when turning the refresh rate down to 120 hertz, you can see that we now have that level of compliance.

So the AOC CU34G2X is at least a 120-hertz capable panel offering something above that of 100-hertz monitors.

The other reasonable thing to see here is that the media mode delivers the best overdrive performance throughout the refresh range.

So there’s no need to change overdrive settings, depending on the refresh rate.

This AOC CU34G2X is partly because the media mode doesn’t exactly push performance to its limits. But still, the results are reasonable.

The only major concern I have here is a 60-hertz performance where a bulk of transitions are quite slow and end up around the 16-millisecond mark.

Again, this performance seemed a bit unusual to me, but I triple checked it.

And yeah, it seems that for some of these refresh rates, the overdrive has just been tweaked such that transitions sneak just in under the refresh rate window.

When putting the AOC CU34G2X. up against a range of other monitors we’ve tested performance is in the mid-range to the entry-level zone.

We do not see much different here to other VA monitors for the past few yours so a best-case response time average in the seven to the eight-millisecond range.

Given a penalty hasn’t evolved too much, this is not a surprise.

Looking at some of the main competitors, the nexus Nx a dg 34 S is slightly faster and performs better at lower refresh rates.

Meanwhile, 100 hertz offering such as the Kogan model here, is a bit slower fitting with their lower refresh rates, it is possible to get a faster VA at 144 hertz such as the MSI mpg 341 CQ.

However, this display costs a lot more and also has higher error rates. For the best 1440 p ultra-high performance, we’re still looking at LG IPS models, like the 34 Gen 850.

We recently reviewed Dargaville’s performance is average for VA.

So again, nothing overly surprising here. Dark transitions are, on average, twice as slow as from a typical IPS panel.

And for some of the worst offenders, you’re looking at three to four times worse.

This AOC CU34G2X is the main performance weakness for VA panels and a reason you might want to consider different IPS panels instead, although they are much more expensive in this performance category.

Refresh rate compliance is weak as we talked about falling well behind other options that said a competitor like the NX, Eg 34 s doesn’t fare that much better.

On a positive note, average error rates are very low, so you’re unlikely to see any inverse ghosting with this mode.

That said, we have to follow that straight up with a negative, 60-hertz performance, where the c 34 g two exports behind the pack.

This is a monitor better suited to gaming in the 80 to the 120-hertz range. Input latency is decent, assisted by a low processing delay.

However, that’s not unusual for a modern gaming monitor, with most delivering sub-one millisecond processing lag.

The main issue here is more in terms of response times, limiting total input lag to over 10 milliseconds. Then for power consumption, pretty standard stuff here. So this isn’t the most efficient display of the specs going around.

Color Performance

For color performance. The AOC CU34G2X sits in an interesting place because it is a wide gamut monitor despite a website, not detailing any wide gamut functionality.

With that said, it’s not a hugely wide gamut display, only offering about 85% coverage of the p3 color space.

So this isn’t suitable for p3 actual work. However, it is enough to deliver a more vibrant image than a regular sRGB display if you’re into that sort of thing.

Unfortunately, factory calibration is less than stellar here, mostly relating to an incorrect gamma.

AOC CU34G2X 34 Color Performance

As you can see in the center of this chart, the gray line should be following the yellow line as closely as possible for correct sRGB gamma.

It instead falls too low, which leads to the high delta. A white performance balance is solid.

However, out of the box with very little tweaks needed, their saturation performance is respectable, with only a small amount of oversaturation.

Due to the unclench color gamut in some ways, having just 85% p3 coverage has its advantages.

For people who do like that oversaturated or vibrant Look, I think this is the reasonable performance given that the vibrant effect isn’t too strong.

That said it’s not accurate, which is why we aren’t getting delta a performance below 2.0 in our tests, for some reason, as well as gamma controls, don’t change the gamma all that much with this monitor so there isn’t much we can do to correct performance using the OSD controls.

Let’s instead move on to a full calibration and see what’s possible. Results here as strong as expected with the gamma issues corrected.

Such that we get good performance, and this carries through to color tests.

We see sub 2.0 Delta averages, p3 performance isn’t as good with significant clipping at the top end of the saturation charts as the display simply can’t show colors on the outer edges of the gamut.

So it’s for this reason that I wouldn’t recommend this to you 3042 X for any color accurate wide gamut work.

The other less than the stellar aspect of color performance is brightness in best gaming monitor.

This panel is only capable of 241 nits peak after calibration, which is below average and won’t be suitable for those that use their monitor in a bright or glary environment.

The minimum standard for monitors these days be 300 or even 350 nits, in my opinion.

Yet the past few AFC monitors I’ve reviewed her fail to reach this level. I think IOC needs to reevaluate their choice of the backlight.

However, contrast is fine with around a 2600 to one ratio, so you are getting noticeably deeper blacks than with an IPS display of otherwise similar specifications.

Viewing angles are decent, although somewhat limited by the 1500 curve. And of course, there’s no IPS glue.

Uniformity is really solid for white, with my unit only seeing a slight fall-off in the upper right corner. But this wasn’t visible during most usage.

Gray uniformity is less impressive. The left and right edges weren’t quite as good as the center here, so this can lead to the uneven cause. That said, my panel had minimal backlight bleed.


Overall, the AOC c 34 g two x performance pretty much as expected in some areas. This AOC CU34G2Xis, a budget class display, using existing ultra-wide VA panels. So performance was always going to be in the range.

That we’ve seen previously, from these sorts of monitors. That is to say, performances okay without being amazing.

We’re not setting new records for a cheaper monitor, but most people will still be happy with the offer’s performance.

Like with most budget monitors, the key discussion here is around trade-offs. What has been sacrificed to deliver such a low price point?

There don’t seem to be any major flaws here are key feature emissions more, the C 34 GTX lacks a bit of polish around the edges.

Take brightness-es, one example for most buyers 240 units will be fine, but it’s below average and won’t be suitable for everyone calibration and p3 coverage.

It’s not terrible or anything, but on a higher-end product, you would see a bit more Polish. And this carries through to response time performance and the overdrive settings, which for a lot of gamers is going to be fine, but lacks the fine-tuning you see with more expensive products.

I’ve seen some OEMs get a bit more out of this panel than ASE has closer to a true 144-hertz experience.

But they offer their monitor at a higher price, and performance for the AOC CU34G2X ends up more around the 120 hertz Mark than true 144 hertz.

This monitor is still a meaningful upgrade over 100 hertz and is worth spending the extra cash on.

I also think when looking at budget monitors that it’s easy to get caught up in some of the downsides to these displays, you’ll often see comments like, you know, yuck, this monitor has deep level smearing VA panels are so bad.

Still, realistically, you won’t get anything better at this price point. Sure, IPS. Ultra whites are the gold standard right now.

But are you willing to spend twice as much? For a lot of people? The answer is no. So when you look at what this monitor is offering, which is 30000 inr, I think the result is pretty decent.

So when it comes down to it, and I look at the IOC CPU 34 GTX versus something like the nixes Nx a dg 34 s, I think the AOC CU34G2X comes out on top as the better value option.

It’s a little over 7000 inr cheaper, have a similar performance not quite as good, but not hugely behind plus a few advantages of its own like a height-adjustable Stand.

So really, I’ve got no issues recommending this display for those after a 3440 by 1440 high refresh experience on a limited budget.

That’s it for this review. I hope you guys all learn something.

And suppose you’re interested in supporting the channel and our monitor testing. In that case, we do have our Patreon page links to that in the description below, and you’ll get access to our calibrated ICC profiles, monthly live streams, discord chat, all that sort of thing.

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