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LG 45″ OLED Ultrawide 5120 x 2160@165Hz 45GX990A and 45GX950A

Blade-Runner said:
OLED vs VA though....I think I would be happy to sacrifice the extra Hz to get OLED color and brightness.
Click to expand...
I agree on this, after experiencing OLED I could never go back to LCD/VA.
The colors, the contrast, the speed. The whole visual difference in games is massive, everything pops out!
 
Blade-Runner said:
Maybe its an optical illusion, but the curve on the 45GX990A looks more aggressive. Also does not look that much smaller than the G95NC, which explains the lower PPI I suppose.
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Screenshot 2025-03-25 at 14.27.31.png

Ignoring curvature, this is about the size difference between the 45" LG and 57" Samsung superultrawide. Screenshot from https://screengeometry.com

wye said:
Two years ago I bought the CORSAIR XENEON FLEX 45 with adjustable flat to 800R curvature because I was scared about the curve and I didn't want to commit to it.
I can confirm that in a few days I got used to the curve, and I never used it flat at all. Useless feature for me.
And the funny part is I have flat monitors at work and I have no problems switching from flat at work to curved at home every day. It's amazing how fast the human eye can adapt.
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Yeah IMO for screens this big the curvature is nice. I wouldn't mind if the Samsung superultrawide was 800R as well, or at least a consistent 1000R instead of straightening a bit at the sides.
 
Blade-Runner said:
Not a fan of the vertical height on the LG, personally think that 34 to 39" would be a better size.
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I think the size of the LG would work better with a higher resolution so that we could still get 140ppm. At 5120x2160, I prefer the size of the 39.7" 40WP95C (or U4025QW).
 
$250 cashback via C1 showing up in my account now and $81 in LG points so hopefully this ends up at around 1420 all in, still a bit rich since it's approaching 77" OLED TV prices but more livable.
 
Anyone know how accurate these screens are? incorrect colors drives me nuts :)
Access to 3dlut would be amazing too. Did that make it to consumer LG monitors yet?

(I have the monitor ordered. If the curve doesn't make me insta return it can throw some meters at it (I have calman, CR-100 and CR-250)
 
SoCali said:
If you use HECAxxxxx with your zip code or random zip code it accepts for 15% off, it's $1699. Check out with Rakuten for another $169 cash back bringing it to where it should be around the $1500 mark.
Click to expand...
Can you give more info on this? I understood 15% off , $1699 and $169 cash back, the rest was like French.
 
I just started using my 45GX950A. Here are some initial impressions:
  • The curve doesn't bother me too much. Since this monitor is so wide, having the curve is better than not having it because it makes the image fit better within the field of vision.
  • Gaming is very immersive.
  • Brightness is sufficient.
  • The range of vertical adjustment on the stand doesn't allow lowering the panel enough. Even in the lowest position, it's a bit too high, so I need to tilt my head up to look at the top of the display.
  • The PPI is acceptable, but not great. It's easy to notice that text looks worse than on a 32" 4K monitor or a 40" 5K2K monitor.
  • I normally use 150% scaling on 32" 4K monitors. I'm trying to use 125% on this monitor since the PPI is lower. Text is a bit too small with this scaling. I think I'll need a custom scaling factor between those two values.
  • I haven't found fringing to be a significant issue with text on this monitor.
  • This panel has the vertical banding problem on gray just like other LG OLEDs.
  • HDR doesn't work on this monitor with my RTX 5090 when using DP 2.1. It works when setting the monitor to DP 1.4. Others report the same problem. Some people say they can use DP 2.1 with HDR when disabling Adaptive Sync, but that isn't the case for me. I hope this is not a hardware bug, and it can be resolved with a driver or firmware update.
  • There's a pretty bad smell coming from the monitor when it's on. I expect it to go away with time.
I hope this helps people considering this monitor. Overall, I like it, but I find that there are some issues with it.
 
zurv said:
Anyone know how accurate these screens are? incorrect colors drives me nuts :)
Access to 3dlut would be amazing too. Did that make it to consumer LG monitors yet?

(I have the monitor ordered. If the curve doesn't make me insta return it can throw some meters at it (I have calman, CR-100 and CR-250)
Click to expand...
TFTCentral have said they are in the middle of testing the 45GX950A right now, and should have their review out in a week. They usually have extensive colour accuracy tests and evaluation.
 
I'm very much on the fence with this monitor, I currently have the LG 45 Ultragear I bought in 2023. Love it and easy to run on my 4080 S.

But 5k2k just sounds like an insane gaming resolution that needs like a RTX-6090 48GB card not due until Fall 2026.

I use my PC mostly for gaming and basic desktop use surfing the web and watching YouTube.

Would love to see the two 45" monitors side by side playing the same game at their default resolutions to truly see the difference.
 
SoCali said:
If you use HECAxxxxx with your zip code or random zip code it accepts for 15% off, it's $1699. Check out with Rakuten for another $169 cash back bringing it to where it should be around the $1500 mark.
Click to expand...
Where are you buying it from to get that discount to work? Directly from LG it doesn't work for me.
 
Zorachus said:
But 5k2k just sounds like an insane gaming resolution that needs like a RTX-6090 48GB card not due until Fall 2026.
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Depends on what you want to play. I am currently running through Doom Eternal with max graphics at 5K2K on a 9070XT and the experience is flawless.
 
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Zorachus said:
I'm very much on the fence with this monitor, I currently have the LG 45 Ultragear I bought in 2023. Love it and easy to run on my 4080 S.

But 5k2k just sounds like an insane gaming resolution that needs like a RTX-6090 48GB card not due until Fall 2026.

I use my PC mostly for gaming and basic desktop use surfing the web and watching YouTube.

Would love to see the two 45" monitors side by side playing the same game at their default resolutions to truly see the difference.
Click to expand...
i have a 4090 and based on YT videos at 5120x2160 from various titles (you can easily search for that) i'd lose about 33% fps, so i'm staying on 3440x1440

can't stand framerates below 100, call me a snob....and i'm not shelling out for a 5090 either.

my ideal would be a 40" 3840x1600 (had an IPS DELL at 38" with that res and it was pristine), but alas, that resolution seems to be long forgotten.
 
Yeah to me high refresh rate and high fps matter more than high resolution.

My current LG 45 Ultragear has a 240hz refresh rate and @ 3440 X 1440 res that's totally doable in lots of games.
 
Opened it likely going back:
DP is a cluster and I have no time to troubleshoot, HDMI 2.1 seems to be working fine enough for now.
Doesn't have 100% color temperature evenness, why I love QD-OLEDs.
 
I put in a request on the LG website for the 45GX950A Oled Monitor main page if everyone could please go upvote to see if they could provide us with a firmware update to support 1440p @ 240hz or 330hz on this monitor they said maybe if they get enough request.
1744055848108.png
 
Bigmonitorguy said:
I just started using my 45GX950A. Here are some initial impressions:
  • The curve doesn't bother me too much. Since this monitor is so wide, having the curve is better than not having it because it makes the image fit better within the field of vision.
  • Gaming is very immersive.
  • Brightness is sufficient.
  • The range of vertical adjustment on the stand doesn't allow lowering the panel enough. Even in the lowest position, it's a bit too high, so I need to tilt my head up to look at the top of the display.
  • The PPI is acceptable, but not great. It's easy to notice that text looks worse than on a 32" 4K monitor or a 40" 5K2K monitor.
  • I normally use 150% scaling on 32" 4K monitors. I'm trying to use 125% on this monitor since the PPI is lower. Text is a bit too small with this scaling. I think I'll need a custom scaling factor between those two values.
  • I haven't found fringing to be a significant issue with text on this monitor.
  • This panel has the vertical banding problem on gray just like other LG OLEDs.
  • HDR doesn't work on this monitor with my RTX 5090 when using DP 2.1. It works when setting the monitor to DP 1.4. Others report the same problem. Some people say they can use DP 2.1 with HDR when disabling Adaptive Sync, but that isn't the case for me. I hope this is not a hardware bug, and it can be resolved with a driver or firmware update.
  • There's a pretty bad smell coming from the monitor when it's on. I expect it to go away with time.
I hope this helps people considering this monitor. Overall, I like it, but I find that there are some issues with it.
Click to expand...

A Lg Rep responded to this issue about HDR not working with rtx 5000 series in dp 2.1 mode they said its a 5000 series bug that they are working with nvidia on to try to fix. On the main product page on LG direct. I have mine coming in the mail tomorrow I bought a silkland vesa 2.1 ceritfied dp 2.1 cable just in case to test it out on.
 
jdizzy said:
A Lg Rep responded to this issue about HDR not working with rtx 5000 series in dp 2.1 mode they said its a 5000 series bug that they are working with nvidia on to try to fix. On the main product page on LG direct. I have mine coming in the mail tomorrow I bought a silkland vesa 2.1 ceritfied dp 2.1 cable just in case to test it out on.
Click to expand...

Thanks. Yes, I saw that. Has anyone tried this monitor with an AMD graphics card with DP 2.1? I wonder if that works. Also, does the RTX 50 series work with other DP 2.1 monitors in HDR?
 
I feel like the bendable monitor may never launch thanks to the trade war. Or of it does god knows what it will cost.
 
I tried the dual mode (330Hz) on my 45GX950A. It doesn't work well with HDR. The screen keeps blanking out every few seconds. This is using HDMI on my RTX 5090.
 
Bigmonitorguy said:
I tried the dual mode (330Hz) on my 45GX950A. It doesn't work well with HDR. The screen keeps blanking out every few seconds. This is using HDMI on my RTX 5090.
Click to expand...
It's a half baked product at this point much like the AW3423DW was before 4 firmware updates. But yeah WOLED colors and screen uniformity definitely worse than QDOLED.
Surprisingly didn't notice much difference in text clarity.
 
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I was tempted to get one of these but I just got my 45” LG a few months ago. From what I have been reading there are some issues that may be addressed with a few firmware updates, so I’ll hold off for now.
 
Blackstone said:
How do you know?
Click to expand...
I am just guessing on price. But I was able to get the LG 45GX950A monitor to run 1440p @ 240hz / 330hz and 4k @ 240hz over displayport 2.1
 

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jdizzy said:
I am just guessing on price. But I was able to get the LG 45GX950A monitor to run 1440p @ 240hz / 330hz and 4k @ 240hz over displayport 2.1
Click to expand...

Are you able to do it in HDR? I tried it with HDMI on the RTX 5090, and the screen keep blanking. The problem shows up only in HDR mode.
 
Bigmonitorguy said:
Are you able to do it in HDR? I tried it with HDMI on the RTX 5090, and the screen keep blanking. The problem shows up only in HDR mode.
Click to expand...
let me try HDR so just turn on autohdr in windows and go in a game and turn on hdr and see if I can still run 240hz or 330hz ? oh I tested this on displayport 2.1 on a silkland cable from amazon
 
jdizzy said:
let me try HDR so just turn on autohdr in windows and go in a game and turn on hdr and see if I can still run 240hz or 330hz ? oh I tested this on displayport 2.1 on a silkland cable from amazon
Click to expand...

Turn on "Use HDR" in the Windows display settings (same place where Auto HDR is located). You don't even need to run a game. Just do something on the screen like opening a browser window, and see if you get blanking. This is what happens for me with HDMI. With DP 2.1, the screen goes blank right away when HDR is enabled.
 
Bigmonitorguy said:
Turn on "Use HDR" in the Windows display settings (same place where Auto HDR is located). You don't even need to run a game. Just do something on the screen like opening a browser window, and see if you get blanking. This is what happens for me with HDMI. With DP 2.1, the screen goes blank right away when HDR is enabled.
Click to expand...
no flickering this is using displayport 2.1 cable vesa certified silkland I have not tested hdmi 2.1 yet with any of this.
 

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I re-ordered the 45GX950A-B after I noticed that it was back in stock but LG is taking forever to ship. I previously owned the 45GR95QE-B but the low resolution and poor text caused me to move to 2 x 32" 4K OLED monitors. I'm hoping this new 5K x 2K model improves on that since I split gaming and remote working on the same PC daily.
 
Idk if this was mentioned in this thread yet but someone on reddit said this about text. (I don't own this monitor, just following along in interest). At least according to this report. He may have just been seeing differences in the default sharpening setting though, where the mode 1 was tuned to be over-sharp.

changed the monitor to game mode 2 (on mode 1 by default, I am also using 2 with my gaming PC) and the text cleared right up. Text clarity is a non issue with this monitor now
Click to expand...

. . .


Fringing and aliasing on screens is exacerbated by how large the pixels appear to you.

PPD, pixels per degree, is a measure of the pixel density you perceive when taking ppi + viewing distance into account.

When viewing any 4k screen, of any size, at the human central viewing angle width of 60 to 50 degrees, you will get around 64 to 77 PPD.

The primary problem with the 42 inch and 48 inch LG oled gaming tvs is that they used a non standard subpixel format that text sub sampling doesn't match up with, causing more aggressive fringing. However, this is also greatly amplified by the fact that people usually mount those screens on their desk, where they get considerably lower PPD (seeing larger pixel sizes to your perspective).

When talking about text quality, resultant PPD by view distance has a large effect, just like native resolution/ppi does to start with. When viewing a 4k gaming TV on a desk for example, you are probably seeing something effectively like a 1500p screen at a desk's pixel sizes instead of what you'd expect from 4k.

If enough space is available, imo you are much better off decoupling a larger screen from a desk entirely, mounting it on a rail spined floor footed stand and putting a small.gap between the rear of the desk and the monitor. That will provide a better viewing angle, more uniform screen to the ends, and higher PPD. Instead, most people with larger screens and especially gaming tvs just try to shoe horn them directly onto a desk which lowers PPD (which exacerbates text fringing and aliasing of imagery, as well as non-uniformity issues to the edges of screen).

https://qasimk.io/screen-ppd/

. . .

The center of curvature of the 45 inch 5120x2160 is 900R(adius) = 900mm = ~35 inches.

At 35 inch view distance, screen surface to eyeballs, you'd get around 82 PPD. Sitting closer with it on a desk could still be in decent 4k PPD ranges, though

A 45" ultrwawide 5120x2160 is essentially:

640px + [ 34" 4k screen ] + 640px

So if viewing one on a deep enough desk at 24 inches screen surface to eyeballs, you'd be getting 63 PPD. I wouldn't go under 60 PPD on 4k+ screens personally, and higher is better, with 66 - 77 PPD being pretty common for 4k screens that aren't extended larger vs view distance to be outside of your central viewing angle..
 
Much better than the old IPS monitors of yore but after being spoiled by QD-OLEDs, I immediately notice the left side being slightly warmer than the right edge which is cooler. QD-OLED has uniformity nailed down, even my 65" S95C is perfect edge to edge. Waiting on the return label now, they were trying to send it to my old work emall associated with EPP account, called twice to have them send it to another email or just txt a link to print, not sure if they are smart enough to do that, opened a cc dispute just in case, LG partner store has a bad rep and I can't return without a RMA/label. I wouldn't keep this even if free, 45" is a bit too big. Need a 39" 5k2k QD-OLED ftw, my old 38 IPS was perfect size wise.
 

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undertaker2k8 said:
Much better than the old IPS monitors of yore but apart being spoiled by QD-OLEDs, I immediately notice the left side being slightly warmer than the right edge which is cooler. QD-OLED has uniformity nailed down, even my 65" S95C is perfect edge to edge. Waiting on the return label now, they were trying to send it to my old work emall associated with EPP account, called twice to have them send it to another email or just txt a link to print, not sure if they are smart enough to do that, opened a cc dispute just in case, LG partner store has a bad rep and I can't return without a RMA/label. I wouldn't keep this even if free, 45" is a bit too big. Need a 39" 5k2k QD-OLED ftw, my old 38 IPS was perfect size wise.
Click to expand...
Is anyone working on a 38 - 39" QD-OLED monitor? I remember owning an 38" LG IPS monitor (3840 x 1600) and it was perfect with the exception of poor black levels (compared to OLED).
 
StryderxX said:
Is anyone working on a 38 - 39" QD-OLED monitor? I remember owning an 38" LG IPS monitor (3840 x 1600) and it was perfect with the exception of poor black levels (compared to OLED).
Click to expand...

I wish. Still have my 38" LG. Been holding out for QD-OLED.
 
StryderxX said:
Is anyone working on a 38 - 39" QD-OLED monitor? I remember owning an 38" LG IPS monitor (3840 x 1600) and it was perfect with the exception of poor black levels (compared to OLED).
Click to expand...
the 39" 3440x1440 must be pretty close in DPI and it is WOLED.
 
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