LG 24GM77 27-inch 144Hz Gaming Monitor Review

With many gamers waiting for AMD's FreeSync initiative to bear fruit or cheaper G-Sync-capable monitors to show up, it’s easy to forget that the prices for high-speed screens without those features are dropping to saner levels. A year ago, 144Hz displays in the 24-inch form factor were selling around $400. That was quite a premium when 60Hz panels went for $200 or less.

Today we’re looking at one such display – LG’s 24GM77. It won't sync to the output of your graphics card, but it does have many other features that will be of interest to gamers. In addition to a maximum refresh of 144Hz, you get an excellent blur-reduction option called Motion 240. There’s also a Black Stabilizer gamma control to aid in shadow detail rendering. If you like to change your picture to suit particular titles, there are six gaming modes that do just that. Finally, there’s a Dynamic Action Sync (DAS) option purported to cut input lag in half.

Brand & Model
LG 24GM77
Panel Type & Backlight
TN / W-LED, edge array
Screen Size & Aspect Ratio
24in / 16:9
Max Resolution & Refresh
1920x1080 @ 144Hz
Native Color Depth & Gamut
8-bit / sRGB
Response Time (GTG)
1ms
Brightness
350cd/m2
Speakers
-
Video Inputs
1 x DisplayPort, 1 x DVI, 2 x HDMI, 1 x VGA
Audio
1 x 3.5mm headphone output
USB
v3.0 - 1 x up, 2 x down
Panel Dimensions
WxHxD w/base
22.5 x 15.9 x 9.8in
567 x 401 x 248mm
Panel Thickness
2.2in / 57mm
Bezel Width
.6in / 16mm
Weight
11.9lbs / 5.8kg
Warranty
Three years

Like almost every other high-speed screen out there, the 24GM77 employs a TN-based panel. Naturally, this one uses a part manufactured by LG. It offers high brightness, an 8-bit color depth and again, refresh rates as high as 144Hz. The only capabilities gamers will miss are Nvidia's G-Sync and AMD's FreeSync technologies. We’ve already seen several monitors with G-Sync, and are starting to receive FreeSync-capable displays.

The white LED backlight dispenses with PWM (pulse-width modulation), which can cause flicker for some users, and exposes an excellent blur-reduction feature called Motion 240. We’re usually guarded in our opinions of backlight strobing because it can significantly reduce light output. Here, LG chooses to omit any sort of pulse-width adjustment, but it isn't missed. Our contrast tests show a mere 15-percent reduction in peak white level when Motion 240 is turned on.

Of course, the main reason to buy a monitor like this one is speed. Running at 120 or 144Hz means there is very little motion blur, even without backlight strobing. Also, you're able to enjoy the full performance of your high-end graphics hardware with v-sync turned on. Variable refresh technologies are great, but at the very least you need a monitor that won't limit your frame rates.

The 24GM77’s most attractive feature, in our opinion, is its price tag. Selling for around $300, it represents a good deal when G-Sync adds at least $100 to the cost of a 24-inch monitor. All we need to see now is good color accuracy, and that’s where our benchmark tests do the talking.

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26 comments
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  • blackmagnum
    LG>BenQ>Asus= tough choices
  • lightsol
    so is it a 24" or 27" display?
  • Bezzell
    24" TN, 1080p? No variable refresh? No thanks.
  • chenw
    damn it, where was this monitor 6 months ago...
  • Mike Coberly
    Quote:
    24" TN, 1080p? No variable refresh? No thanks.

    Quote:
    so is it a 24" or 27" display?

    LG's website indicates that it is indeed a 24" panel, the title is incorrect in stating it is a 27"
  • alidan
    16:10
  • wtfxxxgp
    Yup, this is a 24" not 27"
  • NinjaNerd56
    I got an AOC 27 inch display under $300 recently. No SYNC ability, but a really nice device that's excellent with the games I play.

    It's GAME mode is good, and I have done zero adjustment beyond that. If it lasts 2-3 years, then I can 'upgrade' at a much cheaper price to whatever sync de jour display I want.
  • JeanLuc
    For a gaming monitor to be released these days that does not to come with Gsync or Freesync capability is very short sighted by LG. Would the inclusion of a Freesync enabled 1.2a displayport really have delayed or added considerable costs to this monitor, LG?
  • Marcus52
    This article - seriously? You can't even get the size of the monitor right. And the price isn't anything special for a 24" 144 Hz TN panel, Asus has had one in that price range (under $300) for years now. In my mind these things make the entire article suspect.
  • Agera One
    Why the name "gaming" always used for TN panels (talking about 60Hz) and not for IPS when we can game in an IPS with 5ms response too?
  • salgado18
    You guys could make a budget monitor for gaming roundup, you know. Outside Europe and US, these things are very expensive (and for many people there too).

    Like, all those features are amazing in a monitor, but can we live without them? Do they really make it worth paying double the price of a simpler model? After all, this is a 24 inch full-HD monitor, not even a huge panel or resolution.
  • ZeusGamer
    I've got a Asus VG27He. Now that's 27 inch 144 hz monitor.
  • ubercake
    A high-refresh monitor is the next best thing to a G-sync setup when it comes to gaming because a high-refresh setup is always going to push you into a multi-card setup in order to keep framerates high and minimize noticeable tearing.

    With a G-sync monitor - unless you're running a 4K setup - you can get away with a single decent card (GTX 960 or above) and have a superior gaming experience.

    Before there was G-sync, I always ran with multiple GPUs and a high-refresh monitor. Now, I just replace one flagship with the next as necessary and I'm good to go with my G-sync monitor.

    I can't wait until free-sync hits the scene as the competition should cause adaptive-sync monitor prices to come down. Hopefully, we see a lot more monitor producers on board with adaptive-sync technologies as tearing in general is something you don't realize you're dealing with until you significantly reduce it through high-refresh setups or eliminate it altogether with adaptive sync technologies.

    From a high-refresh monitor standpoint, this LG monitor's specs are great.
  • Bondfc11
    I understand reviewing monitors - it's great and thanks to Tom's for doing them on a regular basis. However, please refrain from calling a basic, TN 24" 1080 panel a gaming monitor. That isn't even close to the base specs gamers are looking for these days in a gaming monitor. This is just a monitor. Something I would expect to see on an accountant's desk - not on a gamer's with thousands invested in hardware to max FPS at ultra settings.

    GSYNC, ASYNC, 1440+, IPS/TN, low lag, ULMB - those are the basis of a gaming monitor these days. Anything else is just meh.
  • moogleslam
    Any FreeSync monitor reviews with some comparisons to G-Sync on the way?
  • atwspoon
    Quote:
    I understand reviewing monitors - it's great and thanks to Tom's for doing them on a regular basis. However, please refrain from calling a basic, TN 24" 1080 panel a gaming monitor. That isn't even close to the base specs gamers are looking for these days in a gaming monitor. This is just a monitor. Something I would expect to see on an accountant's desk - not on a gamer's with thousands invested in hardware to max FPS at ultra settings. GSYNC, ASYNC, 1440+, IPS/TN, low lag, ULMB - those are the basis of a gaming monitor these days. Anything else is just meh.


    We are not ALL top tier gamers. There have to be different levels of availability. I cannot afford a 1440p monitor right now, but I could get a cheaper 1080p monitor seeing as their prices have been getting lower and lower.

    The basis is to have SOMETHING to play on. You must not remember the good ol' 90's playing simple dos games on a crappy Hewlett Packard running windows 95.
  • soldier44
    When are they going to start making these in decent sizes like 30 inches and above. I stopped using a 24" in 2008..... 4K 120-144hz, IPS and 32 inches please
  • photonboy
    Not a "gamers" monitor?
    How many actually read the entire article.

    They talked about things like minimizing input lag and other features specifically targeted towards gamers.

    In fact, towards the "meh" comment several of the features you listed were included. The only thing that wasn't was GSync/FreeSync and it was lower resolution. As said, not everybody can afford 1440p GSync.
  • Bezzell
    I think it's not what modern gamers are exited for. People are betting and have been waiting,(gamers, professionals and reviewers alike) that 27", 1440p, IPS, 120+hz monitors equipped with displayport 1.2a+ will become common within the year. Both Gsync and Freesync in one monitor.

    Korean panels have been running those specs for years now minus the display port 1.2a benefits for around $300.
  • closetwhisperer1
    Why is this review so late? I've had this monitor since december.
  • kyuuketsuki
    This is an excellent *BUDGET* gaming monitor. Not all gamers have spare wads of cash lying around to get a 4K GSYNC (assuming they even have an Nvidia card at all) yadda whatever. If this had been out when I was monitor shopping I probably would have chosen it over the IPS I went with, as it really is an excellent panel with great features.

    My next "monitor" is going to be the Avegant Glyph HMD, though. If that fails to live up to expectations, by then there'll likely be good Freesync 120Hz+ IPS monitors out.
  • XfStef
    When taking into regard the price, I still consider the AOC PQU to be the better choice.
  • slimdiggity
    So, LG 24GM77 or BenQ XL2430T? Seems performance wise they are almost identical, each slightly better in different tests. The BenQ is a bit more ~$50 to 100, but comes with a 3 yr warranty (vs 1 for the LG) and a better build quality (subjective, but it seems the BenQ has more features).