The catch
LG UltraGear 27-inch QHD 240Hz
Setting 240Hz does not mean your games will render at 240 frames per second.
Side by side
A work-heavy desk where static apps stay open for hours is the 27GR83Q-B's territory. When dark-room games and OLED black levels are your main reason to upgrade, the 27GS95QE-B is the better fit. Both give you QHD at 240Hz, so the OLED premium buys picture quality and not more pixels or hertz.
Before you buy
At 240Hz, both have a 4.17 ms interval.
Where this comes from
1000 ÷ 240 = 4.17 ms. Sharing this interval does not mean equal pixel response or input lag.
The catch
Setting 240Hz does not mean your games will render at 240 frames per second.
The catch
Text on the OLED looks less crisp than on a 4K IPS office panel of the same size.


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Work-heavy desks and evening games pull LG 27GR83Q-B and 27GS95QE-B in different directions. Both are QHD 240Hz, so how the panel gets used counts for more than the headline.
An IPS at 240Hz for a work desk, or OLED for evening games
Which one fits
With the IPS option, OLED care does not become central to the purchase.
The self-emissive option is the OLED.
Each tops out at 240Hz.
The same size class and QHD apply to both.
In practice
At 240Hz, both have a 4.17 ms interval.
1000 ÷ 240 = 4.17 ms. Sharing this interval does not mean equal pixel response or input lag.
Physical pixels number 3,686,400 on both screens.
2560 × 1440 is identical. How much content fits changes with scaling or application settings and not with panel technology.
Comparing the number 400 alone loses the important distinction, because DisplayHDR 400 and DisplayHDR True Black 400 are different certification labels.
For the IPS model LG lists DisplayHDR 400, and for the OLED model DisplayHDR True Black 400. Comparing the labels implies no brightness or contrast measurement.

LG, 27GR83Q-B
High-frame-rate games get more headroom on this 240Hz IPS monitor, which keeps the familiar 27-inch QHD layout. Because it has HDMI 2.1, compare the input specification with your graphics card.

LG, 27GS95QE-B
This familiar flat 27-inch gaming monitor from LG delivers OLED contrast along with a 240Hz QHD signal.
Spec by spec
| Spec | LG UltraGear 27-inch QHD 240Hz | LG UltraGear 27-inch OLED Gaming Monitor | In practice |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 2560 × 1440 | Native detail is not added by the OLED model. |
| Refresh ceiling | 240Hz | 240Hz | The maximum refresh interval is the same on both. |
| Panel design | IPS LCD | OLED | Black-level behavior and care considerations change with self-emissive pixels. |
| Size class | 27 inches | 27 inches | A larger workspace is not what this move brings. |
| HDR tier | DisplayHDR 400 | DisplayHDR True Black 400 | Different certification categories are involved here. The two HDR labels are not identical. |
| Workload fit | Static desktop work and gaming | Varied games and media | Elements that stay fixed for a long time deserve special consideration with OLED. |
Trade-offs
Decision guide
The 27GR83Q-B fits a work-heavy desk where static apps stay open for hours, while the 27GS95QE-B fits dark-room games and OLED black levels as the main reason to upgrade. With QHD at 240Hz on both, the OLED premium is for the picture and not for more pixels or hertz.
Far more of a gaming monitor's time may go to showing spreadsheets, browser tabs and fixed toolbars. For that workload, the 27GR83Q-B is the simpler place to start. The 27GS95QE-B becomes more compelling when games and media dominate and you are comfortable following the OLED care guidance.
QHD and 240Hz are the limit for both monitors. The OLED makes its case through self-emissive pixels and how it handles dark content and not through a larger desktop or higher refresh ceiling. If you play in a room and games where those picture differences matter, that can be worth paying for.
Specific conditions and settings sit behind manufacturer response figures. They don't translate directly into measured total latency or a complete motion-clarity test. Unless independent model-specific measurements are added, keep the recommendation tied to workload and panel design.
By the numbers
What we found across the computer monitors we compare, plus the checked facts behind each finding.
None of the 50 models checked meets all of “At 120Hz or higher, motion looks smoother”, “Games and films with OLED contrast”, and “A screen that stays comfortable for everyday office work”, so the pick goes to the closest practical compromise.
0 models fit, out of 50 checkedHow we countedThe count uses each product's current fit ratings for “At 120Hz or higher, motion looks smoother”, “Games and films with OLED contrast”, and “A screen that stays comfortable for everyday office work”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| LG UltraGear 27-inch QHD 240Hz |
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| LG UltraGear 27-inch OLED Gaming Monitor |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Your day is filled with static documents, dashboards or toolbars.
See price & reviews on Amazon
Games are your main use, and self-emissive black levels matter to you.
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