Those of yous following our monitor reviews may be aware of the LG 27GL850, the first of LG'southward 1ms-grade IPS gaming displays and our current favorite 1440p gaming monitor overall. In our review we observed that while that console couldn't really hitting a 1ms greyness to grey average with usable overdrive settings, cheers to LG'due south improvements to their IPS LCD technology, it was even so the fastest 1440p IPS display on the market and a keen buy for gamers.

The LG 27GN750 we are reviewing today is a very compelling production, it uses the same 1ms-class IPS engineering science, just brings it to a new panel type. Instead of going 1440p at 144Hz, the 27GN750 brings a 1ms rated response fourth dimension to a 27-inch 1080p 240Hz panel. This gives us another option in the loftier-end 1080p monitor market and i that, cheers to IPS, could exist a really convincing buy.

It's not the first 1080p 240Hz IPS monitor we've reviewed though. That goes to the MSI MAG251RX which is a smaller 24-inch blueprint and uses a console from AU Optronics. And to exist honest, information technology performs really well, easily offering fast enough response times to keep upwardly with the 240Hz refresh rate. So LG has their work cut out for them to offer a neat super loftier refresh feel even with their known quality IPS engineering.

Aside from the main specs that we've been talking almost, LG offers a fairly typical experience: G-Sync compatibility a.k.a. adaptive sync, so this monitor works with both AMD and Nvidia GPUs. LG besides touts HDR10 support, but with no VESA DisplayHDR certification it means it's a worthless inclusion. That's generally because this is just an sRGB display, 99% according to LG's website but unlike the 27GL850 it doesn't pack in a wide gamut.

The LG 27GN750 is besides priced competitively at only $400, which is typical of LG's current monitor line-up. This makes it cheaper than the ViewSonic XG270 and Acer XV273X and around the same price equally Asus' attractive VG279QM which we're hoping to review soon.

On the pattern front end, LG is sticking with the aforementioned tried and truthful formula used in the UltraGear line for the last few years. We like information technology from a visual standpoint, information technology'due south not the nearly premium construction as what you lot're getting is mostly plastic, simply the simplistic black artful with a few red highlights looks fine. Cypher crazy going on here, the focus is purely on that IPS display with decently slim bezels.

There are some not bad features included, including meridian, tilt and pin support plus very easily accessible ports on the rear. LG doesn't tuck these away behind a plastic flap or along the bottom, they're only direct on the back and easy to access. Ii HDMI and a DisplayPort here plus a USB hub and audio output. There are no built-in speakers.

The only real business concern is the stand which we found a bit wobbly for our liking, nothing outrageous but the connection between the stand pillar and the legs isn't great, so it does take the opportunity to rock around slightly.

The on-screen display, as with most UltraGear monitors, is controlled through a directional toggle forth the bottom border of the screen. We like LG's OSD layout, it's easy to navigate and has all the relevant information viewable at a glance.

Opinion: 240Hz vs 144Hz

1 question that tends to bob up when reviewing high refresh monitors similar this is: practise you actually need 240Hz, and is information technology an upgrade over 144Hz? Having reviewed a few 240Hz monitors lately, we're becoming more accustomed to the improvements in clarity and motility treatment that 240Hz provides over 144Hz, and so we'd say there is definitely an improvement. Not as much as the proceeds from 60 Hz to 144Hz, but playing games on a 240Hz display like this feels extremely responsive and you could fifty-fifty say the same for desktop applications.

In most circumstances you will still need a powerful PC to hit 200+ FPS at 1080p in many titles, and then make sure that you have a fast CPU in particular to avoid CPU bottlenecks to get the about out of this sort of monitor.

Something else that should be noted is the pixel density of this monitor. 27-inches of screen real manor simply just a 1080p resolution isn't the highest resolution or sharpest feel going around, and we tend to experience 27-inches is slightly as well large for a 1080p monitor. It's peachy for gaming, peculiarly when the refresh charge per unit is so loftier, but for general desktop use similar web browsing we feel the pixel density and resolution is a fleck of a constraint.

Performance

Now let's take a look at the all important response time information, starting with the four chief overdrive modes included. At 240Hz, the off mode does reveal quite decent stock response time numbers for this IPS panel, with a vi.1ms gray to grey average. This is faster than a lot of IPS panels with overdrive, and then we're off to a good start.

Response Times / Overdrive Modes

LG 27GN750 - Overdrive Off (240 Hz)

LG 27GN750 - Overdrive Normal (240 Hz)

The normal mode manages to improve performance quite nicely over the Off manner with no appreciable increment to overshoot. A 4.42ms greyness to grey boilerplate is good, allowing for 82% of transitions to fall within a reasonable tolerance of the refresh window. I think a lot of people volition be happy with this fashion but we can practice i better.

LG 27GN750 - Overdrive Fast (240 Hz)

Using the Fast style we get a marginal improvement to a 3.79ms grey to greyness average, all the same with no significant gains to overshoot, so this is the best mode to use for loftier refresh 240Hz gaming. With 95% of transitions complying with the 240Hz refresh rate, what we're left with is an IPS monitor that is truly capable of refreshing at 240hz with a 1080p resolution.

LG 27GN750 - Overdrive Faster (240 Hz)

Like most of LG's recent 1ms course monitors, they substantially cheat to list this every bit a 1ms monitor. I was able to achieve a 1.9ms grey to grey average using the Faster overdrive mode, with some transitions below 1ms, the level of overshoot here is very high, with an average mistake of 38% and with 55% of transitions exhibiting serious inverse ghosting. Despite striking 1ms or thereabouts, this style is unusable due to the bright trails it produces in practice.

So nosotros at present know that the Fast mode is the all-time to extract maximum performance at the highest refresh rate allowed, but which mode is the all-time to use throughout the refresh charge per unit range? After all this is an adaptive sync monitor, so refresh rates will fluctuate in games and could sit in different ranges depending on what you're playing. Having consequent good functioning across the refresh rate range is important to account for this.

Flicking through the Fast fashion shows that overshoot begins to become apparent at 144Hz, information technology's non terrible at this stage but when delivering a three.78ms gray to grey average at this refresh, a chip of overshoot creeps in. The monitor all the same performs well at 120Hz, just it's at 100Hz where we start to encounter noticeable inverse ghosting. Performance remains adequately consistent in the Fast manner at only below a 4ms response time average, only 120Hz is around the usable limit for this mode. Below that, at 85Hz and 60Hz for instance, inverse ghosting is noticeable and then I'd no longer recommend this mode for lower refresh rates.

However the Normal mode performs really well across the entire refresh range. Even at 240 Hz we're still getting a 4.4ms grey to gray average, which is just 17% slower than the Fast mode. But with the Normal mode, overshoot only becomes noticeable at 85Hz, not 144Hz, and even at 60Hz inverse ghosting isn't much of an issue. Meanwhile, response times autumn between 4.0 and four.5ms for the well-nigh office which is great for an IPS display.

This leads me to make two chief recommendations for gaming with the 27GN750: if you'll be playing mostly at high refresh rates, above 144Hz in competitive shooters and that sort of thing, I'd utilise the Fast overdrive mode. If yous want to game at lower refresh rates, or want a single mode that handles the entire adaptive sync range the best, I'd stick to Normal.

How does the 27GN750 stack up to other 1080p and loftier refresh panels? Looking at pinnacle performance, so best overdrive mode for the highest refresh rate, LG'south new fast IPS offering holds up well. Information technology's faster than a TN monitor like the Pixio PX5 and also manages to slightly outperform the 27GL850. Even so information technology doesn't quite evangelize the same performance every bit the current generation of 0.5ms-form TN panels like you make it Gigabyte'southward Aorus KD25F. Here the KD25F is virtually 20% faster with the same excellent overshoot handling.

One of the bigger battles is between the 27GN750 and the MSI MAG251RX, the ii 240Hz IPS monitors I've tested, one with an LG 27-inch console and the other with a 24-incher from AUO. With this peak performance chart, there's no clear winner, the MSI monitor is 18% faster merely comes with higher levels of inverse ghosting.

Looking at these 2 monitors across the refresh rate range, and what's interesting to me is to observe that LG'south IPS console is only slightly faster than AU Optronics equivalent. When looking at the Normal manner with the LG monitor versus Fast with the MSI monitor, in those middle refresh rates the 27GN750 only ends up 5% faster with slightly better overshoot treatment. It is, all the same, superior at higher and lower refresh rates, so the 27GN750 is somewhat faster when comparing these 2 modes.

LG does have a slight advantage in that its quicker overdrive way, in this case Fast, is amend than MSI's mode called Faster. MSI does hit 3.2-ish ms at 240Hz using this style as we saw previously, but it'south totally unusable at 144Hz. LG's equivalent is a fleck slower at 240Hz, just easily usable down to 120Hz. In my opinion this makes the LG selection amend for higher refresh rate gaming while making use of adaptive sync. And then overall AU Optronics does offer a expert IPS console for 240Hz, however LG's technology appears to exist somewhat superior.

Back to the overall comparison charts. Dark level performance is a non issue with the 27GN750, MSI's offering is a bit improve tweaked in this region simply in that location'south no nighttime level smearing here. We also see great response time compliance for the maximum refresh rate, at above xc%, so don't be concerned about IPS not existence expert enough for 240Hz. This latest generation is definitely good enough.

Boilerplate error rates are kept nicely in check fifty-fifty using the Fast mode at 240Hz, and like I mentioned before this is one area where the MSI MAG251RX did suffer a fleck. However, MSI's monitor is faster at 60Hz, although you'd think 60Hz would be not used very frequently on such a high refresh display.

Input latency is a not issue with the 27GN750, with a processing delay below 0.5ms and total lag in the concatenation effectually the 6ms mark. This is a very responsive display that feels quick to use in all regards, it's just got one of those smashing combinations of depression input lag, loftier refresh rate and good response times.

Ability consumption is boilerplate, nothing interesting to highlight. This is your standard 27-inch display in terms of energy efficiency.

I major feature that LG does not provide with the 27GN750 is backlight strobing for blur reduction, and then its like in this regard to the 27GL850. MSI's MAG251RX and other options on the market like the Asus VG279QM do include backlight strobing, so for those that want this characteristic, LG's option may not be the best.

Color Performance

There's nothing overly special going on here given this is an sRGB only display, with no broad gamut support and despite beingness advertised as HDR10 capable, it's not actually HDR either, so don't expect true HDR functionality. With that said, a 99% sRGB IPS display can even so await fantastic, so let's see what we're working with...

Default Color Performance

LG 27GN750 sRGB, tested at native resolution, highest refresh rate
Portrait CALMAN Ultimate, DeltaE Value Target: Beneath 2.0, CCT Target: 6500K

Grayscale, Saturation and ColorChecker

This is how the 27GN750 performs in terms of default, out of the box performance. Do note that for this review and all reviews moving forward, we are switching to a new deltaE formula, dE ITP instead of dE 2000, considering dEITP is the new industry standard. We'll bear witness dE2000 results too, and so you can compare information technology to other reviews, but dEITP is a more than sensitive and in some ways meliorate metric. The formula is specifically designed to better handle modern displays like those with wide colour gamuts, but the basics remain the same: a one deltaE difference is meant to be perceptible by the homo heart, and anything below a dE of two-three is more often than not considered accurate.

Our unit did have a slight pinkish tone out of the box but nothing out of the ordinary. The CCT boilerplate bend is reasonably good merely there are some issues with low gamma every bit yous can see in the gamma curve. This leads to loftier deltaE performance in those upper mid tones, then information technology's not a specially accurate brandish out of the box for greyscale.

OSD Tweaked Performance

LG 27GN750 sRGB, tested at native resolution, highest refresh rate
Portrait CALMAN Ultimate, DeltaE Value Target: Below two.0, CCT Target: 6500K

Grayscale, Saturation and ColorChecker

With an incorrect white point, these errors go along into our colour tests like saturation. A dE of 9.35 is quite high using the new ITP metric, but even nether the onetime formula we're notwithstanding looking at performance that isn't fully accurate. We cease upward with average operation for a gaming display. Nothing much new in the ColorChecker exam either, these are average results.

There are two principal issues with performance and nosotros tin correct one of them in the OSD, and that's the white point, with some tweaks that you can see hither. Nevertheless the gamma curve problems nosotros saw earlier can't be stock-still, which is why when we look at grayscale performance, we still end upward with a deltaE higher up 3.0. Non a terrible result and it's more accurate than information technology was before, merely not perfect. Like story throughout the color tests, improved performance but not by enough to make this an accurate brandish.

Calibrated Color Operation

LG 27GN750 sRGB, tested at native resolution, highest refresh charge per unit
Portrait CALMAN Ultimate, DeltaE Value Target: Below 2.0, CCT Target: 6500K

Grayscale, Saturation and ColorChecker

However, it is possible to achieve a decent level of accuracy through a full calibration, which we performed using DisplayCAL. The gamma curve is mostly resolved now, leading to a deltaE of 2.05 which is very solid, only permit down by nighttime performance. In terms of saturation we cease up with a sub 2.0 deltaE and in ColorChecker, around a 2.27 deltaE average which is a great consequence for a gaming monitor. Like a lot of IPS displays, the 27GN750 responds well to calibration and you can end up with a actually prissy looking monitor.

Elevation brightness is average at around 350 nits afterward scale, which is fine for near viewing atmospheric condition. As for contrast… well this is one area that LG's 1ms-class IPS panels accept struggled with, the 27GL850 is a peculiarly poor issue. The 27GN750 isn't quite as bad as the 27GL850, but with a contrast ratio below 900:1, black levels and contrast are all the same a weakness for this type of console. In particular y'all tin see AU Optronics equivalent near the summit of the charts in the MAG251RX, which produces a 40% higher dissimilarity ratio, more in line with what we'd normally expect from a modern IPS.

Viewing angles are very solid, so if you're tossing up between this and a 240Hz TN panel, more often than not yous tin can await similar contrast ratios but improve viewing angles with the LG IPS option. Uniformity was also outstanding with my review model, well above average although IPS monitors practice tend to be strong in this area.

Who Is It For?

All upwardly, we call up the LG 27GN750 is a pretty good monitor. While we have our reservations effectually 1080p monitors at 27-inches in size specifically, if that's what you're after, LG is treating you lot to excellent functioning combined with mostly solid colors. I'm very happy current IPS technology allows for such a combination of super high refresh rates and a nifty viewing experience. A few years ago you but wouldn't get a skillful feel out of a 240 Hz IPS brandish, but now it's definitely a reality.

The LG 27GN750 provides performance merely 1 step behind the best TNs on the market right now, hands delivering 4ms response times on average, with this particular model being capable of those speeds across the unabridged refresh range. Y'all tin can even push button it faster than that at the elevation finish, which gives a articulate and responsive 240Hz experience.

Given that the 27GN750 too packs in a decent color experience, especially when calibrated, forth with fantastic viewing angles and uniformity, I'd much rather purchase this sort of 240Hz display than a TN equivalent, fifty-fifty if the TN ends up twenty% faster. Personally I think that small speed tradeoff is worth it when you gain a lot in the color department, especially when electric current pricing doesn't make the IPS version more than expensive.

In that location were some interesting findings to come out of this test in item. One is that while the LG 1ms-course IPS console is faster than a like offer from AU Optronics, it'south not that much faster, so in practice yous'll finish up with a pretty similar experience whether you get with the 27GN750 or a high quality AU Optronics alternative like the MSI MAG251RX. LG doesn't have equally much of a atomic number 82 in this 1080p 240Hz market place every bit they do in the 1440p marketplace with their flagship panel.

Performance is undoubtedly very stiff, giving us the best response times, yet that has led to a few merchandise offs. Once once again nosotros take unimpressive dissimilarity ratios, so the 27GN750 isn't not bad for those that game in dark rooms. LG has likewise neglected to offer backlight strobing. Both of these concerns make an alternative with the AUO console potentially a better selection.

The LG 27GN750 volition set you back $400, which is competitive with like specced models. It's hard to definitively say whether you should purchase this or something else. It really comes downwards to what you lot're afterward in a monitor. If you lot want the best performance, get the 27GN750. If you desire backlight strobing, or need better contrast, or aren't a fan of the size, in that location are a few other decent options bachelor. Nosotros'd personally lean towards the MSI MAG251RX considering it's a bit cheaper and has backlight strobing, but that recommendation might non be right for anybody.

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