LG 39GX950B

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TL;DR: 39-inch 5K2K OLED: great text, comfortable curve, strong gaming.

Overall

#3 in

Ultrawide Monitors

according to Reddit Icon Reddit

Sentiment score78% positive
200
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32

Top Pros

Top Cons

Last updated: May 7, 2026

Reddit Reviews

Reddit Icon1AMA-CAT-AMA
3 months ago

So in my mind: You can compromise and get a regular non ultrawide. Then, I think 5k 27 inch monitors or 4k 27 inch monitors do exist, but you're gonna need a hefty graphics card to properly play games on either. Then you could compromise on refresh rate, 60 hz is gonna be way easier to power especially with some type of upscaling along with it. If you insist on ultrawide, you're simply not gonna hit the required PPI so you're gonna have to compromise on that. The best you're gonna get there is 5k2k 40 inch monitors like the LG OLED one, the Odyssey G9 57 at 8k2k. Both are at around 140 ppi so not great, but still very nice for productivity. Now if you need accurate colors, none of the gaming monitors will guarantee good colors, but if you're able to manually calibrate it that might be the way forward. If you can't manually calibrate it, it might be better to buy an office intended monitor like the dell 40 inch 5k2k, but then you lose mini-led/oled functionality.

Reddit Icon4look4rd
4 months ago

45" is too big, I use an LG 42" TV and thats the absolute maximum size to comfortably use as a monitor, and even then I still need the display upscaled. 39" seems ideal, pretty much the same width but a bit shorter, the vertical pixels at the top don't matter at all.

Reddit IconAcquire16
4 months ago

This. Many of us are on 38" 3840x1600 screens that have been waiting years for an upgrade. 45" is way too big for me. Plus that 800r curve is terrible. I would've preferred 2000r in the 39", but 1500r is a lot better than 800r

4 months ago

The 45" is too big. 38/39" is the sweet spot for me. It covers my entire field of view. The smaller screen will also have higher pixel density. The 1500r curve will make it more versatile for gaming and desktop usage. I would've preferred a 2000r curve, but at least it's not a wild 800r.  Many of us have a 38" 3840x1600 screen that we've been waiting years for an upgrade.  I have the money, but monitor makers refuse to make the product I want. 

Reddit IconAction3xpress
18 days ago

I just setup my 39GX950B last night and played some Recsec. Coming from a AW3423DWF myself, its a really nice upgrade!

18 days ago

Yea I didn't think 34" -> 39" would be that big of a difference, but it feels way more immersive. The extra screen space with the extra curve is nice. I played a bit on my buddies LG 5K2K 45" before he returned it (Gave him bad motion sickness) and it was a bit too much for me.

Reddit IconAdorable-Ebb-7498
2 months ago

I currently have the 45” 5k2k and might sell it for this one. 1500 curve sounds nice 👍

about 2 months ago

The curve is strong so your voice will sound like you're in a fishbowl lol. Reason im going to switch to the 39 inch.

Reddit Iconala90x
4 months ago

I think this isn't really about which one is "better". It's simply a different form factor of essentially very similar monitor. I previously owned the 38GN950, which was an excellent display. For a long time, I was convinced that I'd move straight to its OLED successor as soon as one became available. However, the 45GX950A arrived first, and I figured it was at least worth trying. I was initially skeptical that 45 inches would be too large and that the 800R curvature might be too aggressive. That feeling did not last long. I adapted to the proportions fairly quickly, and now it feels just right. Now the release of the 39GX950B did not really spark interest for me anymore. I dont find myself wanting a smaller version anymore. I also feel that the generous 5K resolution and the level of detail 45GX950A provides are slightly better appreciated at this size. The PPI is still notably high, and scaling isn’t strictly necessary (though I personally use 125%). There's more of realistically usable workspace for productivity, and in games it's easier to admire the added detail that the higher resolution brings on a physically larger screen. Compared to traditional 4K 16:9 displays, these two are roughly equivalent in size to about a 37" and a 32" monitors respectively. That said, I completely understand that with different preferences, desk sizes, and viewing distances, the 39" model could be perfect.

Reddit Iconalexyenov
3 months ago

Even setting aside the difference in size and curvature of the monitors, the new 39-inch model is built on Tandem technology, which is significantly more advanced than that used in last year's 45-inch model. This includes higher brightness, sharper text, and improved durability (according to LG).

3 months ago

A native 5120x2160 resolution is better on a 39-inch display because it offers a true 11+ million pixels, while 3440x1440 has less than 5 million physical pixels, and no matter how hard DLDSR tries, it won't display more than 5 million pixels. Yes, graphics will be better with DLDSR 2.25 and a 5160x2160 resolution, but it's not the same as a true 5120x2160 matrix. Furthermore, a 39-inch diagonal will provide significantly more immersion in gaming. However, if you want to avoid the 5080's performance degradation and still want a lot of Hz, you might want to consider the new 34-inch 360Hz monitor with 5th-generation QD-OLED from Samsung. MSI already sells such monitors, and they look great. If you want, you can play with DLDSR (not necessarily at 2.25X, for 5080 1.78x will be enough, which will create a resolution of 4587x1920 for such a monitor, which is noticeably easier on the video card than 2.25x).

Reddit IconAlternative_Way_1633
4 months ago

Yeah, 21:9 to 16:9. I have been an ultrawide fan since I dove into PC. Personally, for me, it’s hard to justify the extreme price difference for identical features. They each have their own benefit though. The C6 will have the great glossy finish enhancing colors and HDR. The new 39” will have a tandem panel. I hate my obsession with tech sometimes, lol.

7 months ago

I have a 5090 Aorus Master and a 9800X3D. I love everything about ultrawide. It is my favorite experience to game and separate PC experience from console. I had the LG 5K2K. I used it for about 3 weeks. It is a phenomenal monitor. It outputs a beautiful image. The matte coating is what it is, but I don’t think it affects the image like most people who don’t have the monitor say. I play mostly single player titles and I don’t chase frames, but DLSS is there to help as well as games implementing frame gen. Now for the flip side. I took it back. I got a good deal on it I think. It was $1599 on sale, I got 10% back on the purchase, so knock another $160 off. I sold my C4 for $600 and put that towards it, so basically got the total cost down to about $840. Then I noticed the LG C5 48” went on sale for $899. Bigger screen real estate, only 20 less hz than the 5K2K, a slightly more vibrant image with the glossy screen, and cross platform compatibility if I ever needed that. It seemed like a no brainer for my use case. I don’t do productivity work, I solely game. Like you, I have struggled with buyers remorse. I get something and constantly review other products. I can’t seem to “settle” with any decision. It drives me nuts at times. Even typing this I want to go back to the 5K2K because I am just a sucker for ultrawide. That said, I want to wait for my true dream monitor. 34”, 39”, or 45” ultrawide 5K2K QD-OLED. At that time, it’ll be an easy decision for me. The C5 will go and I’ll break out the wallet and buy with NO remorse! Just focus on YOUR use case. Quiet the noise and stay off the reviews! Your 4090 can run the 5K2K. At one point I was using a 9070XT and running averaging 60 frames on Monster Hunter Wilds native. I will leave you with this, my personal biggest upset with the 5K2K, MGS3 Snake Eater Delta doesn’t have support for ultrawide! You can adjust the files and get it, but it is super buggy and crashed a time or two on me doing that. You will have games that just don’t support even 21:9 aspect ratio, which at this day and age is ludicrous. If you can deal with the black bars then don’t even worry about it. I should add on my rant. I mainly focus on visual fidelity. The immersion and true to life colors are my only concerns. I do prefer to stay at least over 120 frames, but I don’t need the 500 you can get on some of the new monitors as I stay far away from competitive titles. Those years are behind me. I play for fun and to escape reality. The dual functionality of the 5K2K is a nice feature, but for me, I’d never use it. I would never want to play a game and suffer a significant image loss in 1080 ultrawide format. That to me is a feature I’m paying for and will never take advantage of. I hope this helps!

7 months ago

I’ve read a lot of mixed reviews in regard to productivity on the 5K2K. Some love it and some find the curve a bit extreme for that use case. It does have a higher PPI so your text clarity will be slightly better from that of the QD-OLED at 110. I primarily game, so I can’t give insight personally on production use.

7 months ago

It is a sight to see when you’re sitting in front of it, is it not? Truly a wow factor!

7 months ago

I will say, I have tested countless monitors and TV’s, all OLED. Glossy is my FAVORITE! The punch and vibrancy of colors is unmatched, but the 5K2K just gives you a feeling that those 16:9’s don’t deliver.

7 months ago

Oh man, okay. Let me see if I can help. As for my use case and games, 90% gaming. I am not a competitive player AT ALL, lol. I’m now 34, I play for leisure and enjoyment. I avoid most competitive shooters like the plague. I’ll dabble in Fornite, COD, of BF, but it’s all for fun to me at this point (I suck at those games). I am heavy on the story titles. I solely look for the best visual and immersive experience in my displays. 100% transparency, yes, I do miss the glossy. I would love for there to be that option. I’ll put it to you like this, the day a glossy 5K2K OLED monitor hits the market, this monitor is gone and I’m buying whatever make/model that would be. That said, this monitor still projects a beautiful image. The colors still pop. The sharpness is still great. The details in the image. It’s 11,000,000+ pixels wrapped around your face. There’s no experience like it. That’s what this monitor is about! You can’t get the immersive experience from any other display that the 5K2K delivers. Nothing like it exists right now. When I am sitting in front of it, I don’t really find myself thinking about it being glossy at all. The matte coating on this monitor is not equal to that of an IPS. It almost seems more like a semi gloss. The biggest difference from a QD-OLED to a WOLED, is the sub pixel layer. QD-OLED allows for more vibrant/saturated colors. It has perfect blacks, but only if played in a dark environment, light raises those blacks drastically. WOLED has perfect blacks in light or dark (light affects this very slightly). The colors aren’t as saturated, but are still very good. I do believe text can be easier to read on WOLED as it uses a white sub pixel layer. There can be a hint of green infringement on text on QD-OLED. To wrap up, a glossy screen almost gives an oily like display. Like you can reach in and grab it. You’re looking directly at these fast responsive pixels light up and shut off. Matte, you’re still seeing that, but it feels as though you’re looking more at a screen.

7 months ago

It is a game changer for immersion. I too came from a C4. I will say, it took a few days to adjust to the matter from glossy, but the 5K2K hits different.

7 months ago

Yes, that is the monitor. The curve truly isn’t bad at all. When you sit in front of it, it adapts perfectly to your line of sight and peripheral vision.

6 months ago

Yes, the matte is a let down, but I will say it does look more of a semi-gloss than a matte. Having ordered and used the G95SD with the matte finish, the LG is WAY less of a matte than that model. I sent that back. The matte finish was horrid. A higher refresh would be nice, but nothing can run that on the current market. I will say, the 1080 looks terrible. It doesn’t scale well with image quality. I don’t even utilize that feature. A true DP 2.1 should have been a MUST for the price they ask. It definitely isn’t worth $2k, but if you can get it on a good sale, it’s easier to swallow.

6 months ago

I don’t have any experience with the G9, so I can’t answer to that. I’ve never tried 32:9 aspect, but I imagine it would be pretty great. I am a fan of ultrawide though. I also don’t do productivity, only a gamer. That said, I don’t think there’s another gaming experience on the market that is the 5K2K. The 800R curve is perfect when you sit in front of it. The curve perfectly meets your peripheral vision. The image on the monitor is great (I do wish for a glossy variant one day). I would say to you this, buy it from Best Buy. Try it out. If you don’t like it, take it back. I do think you’ll find it enjoyable. The extra real estate you get with the screen size. The OLED factor (as you already know having a G9). Don’t bother with the dual mode though, it doesn’t scale properly.

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