The catch
LG UltraGear 27-inch Nano IPS
180Hz is reached by overclocking and is not the native refresh rate.
Side by side
LG 27GP850 vs 27GR83Q: 27GR83Q is worth it once the PC regularly goes past 165 fps
Quick verdict
The 27GR83Q-B makes sense if your games regularly run well above 165 frames per second and you want a 240Hz IPS screen. If the 27GP850-B has the lower current offer and 165Hz, or its 180Hz overclock, covers your system, pick it instead. Either way you get a 27-inch QHD monitor.
Before you buy
Why, and what it costs you
Stepping up at native rate saves 1.89 ms per refresh
The maximum-refresh interval gets about 31.3% shorter when moving from 165Hz to 240Hz.
Where this comes from
1000 ÷ 165 = 6.06 ms and 1000 ÷ 240 = 4.17 ms, a difference of 1.89 ms.
The catch
LG UltraGear 27-inch QHD 240Hz
Setting 240Hz does not mean your games will render at 240 frames per second.
LG UltraGear 27-inch Nano IPS
- Why pick it
- Your games typically run under what the higher-refresh monitor can offer.
- QHD Nano IPS appeals to you, and the current offer is meaningfully better.
- The catch
- 180Hz is reached by overclocking and is not the native refresh rate.
LG UltraGear 27-inch QHD 240Hz
- Why pick it
- Competitive games on your PC regularly go beyond 180 frames per second.
- High-refresh support over an HDMI 2.1 connection is something you need to verify.
- The catch
- Setting 240Hz does not mean your games will render at 240 frames per second.
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What this page compares
This comparison of LG 27GP850-B and 27GR83Q-B for QHD gaming separates the 165Hz native rate from the 180Hz overclock and shows when 240Hz helps your system.
The point at which 240Hz outweighs a 165Hz Nano IPS screen
Which one fits
Pick the situations that sound like you
Competitive games that stay above 180 fps
Additional refresh headroom comes with the GR83Q.
- LG UltraGear 27-inch Nano IPS
- Good
- LG UltraGear 27-inch QHD 240Hz
- Better fit
Games mostly running under 165 fps
A lower GP850 offer can matter more, since the higher ceiling may go unused.
- LG UltraGear 27-inch Nano IPS
- Better fit
- LG UltraGear 27-inch QHD 240Hz
- Good
Office applications with more space
Each is 27-inch QHD.
- LG UltraGear 27-inch Nano IPS
- Similar
- LG UltraGear 27-inch QHD 240Hz
- Similar
Letting the larger gamut percentage decide on its own
A measured accuracy ranking is not what coverage gives.
- LG UltraGear 27-inch Nano IPS
- Depends
- LG UltraGear 27-inch QHD 240Hz
- Depends
In practice
Differences you will notice
Stepping up at native rate saves 1.89 ms per refresh
The maximum-refresh interval gets about 31.3% shorter when moving from 165Hz to 240Hz.
How we worked this out
1000 ÷ 165 = 6.06 ms and 1000 ÷ 240 = 4.17 ms, a difference of 1.89 ms.
The gap narrows when the overclock is used
The interval at the GP850's 180Hz overclock is 5.56 ms, which leaves a 1.39 ms difference to 240Hz.
How we worked this out
1000 ÷ 180 − 1000 ÷ 240 = 1.389 ms. Whether the overclock works depends on the supported mode and source.
Native pixel workload does not grow with the faster screen
Per displayed frame, both panels use 3.69 million pixels.
How we worked this out
2560 × 1440 = 3,686,400. Even so, rendering 240 different frames instead of 165 can demand more from the system.
Option A
LG, 27GP850-B
UltraGear 27-inch Nano IPS
This is the familiar 1440p gaming size, with a native 165Hz refresh rate and a 180Hz overclock option. Players who keep documents and desktop apps open all day will find it suitable too.
- Best for
- QHD gaming that doesn't require an OLED screen
Facts we checked
- Nano IPS panel, 27-inch, 2560 by 1440
- Native 165Hz, with an overclock option of 180Hz on top
- A USB hub, HDMI and DisplayPort 1.4
Option B
LG, 27GR83Q-B
UltraGear 27-inch QHD 240Hz
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.
- Best for
- Fast QHD games on a screen that also does your work
Facts we checked
- 240Hz IPS panel, 27-inch, 2560 by 1440
- DisplayPort and HDMI 2.1 inputs
- Pivoting stand with height adjustment, and 95 percent DCI-P3 coverage
Spec by spec
Where they really differ
| Spec | LG UltraGear 27-inch Nano IPS | LG UltraGear 27-inch QHD 240Hz | In practice |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 2560 × 1440 | No added detail or desktop pixels on either. |
| Panel type | Nano IPS | IPS | Both use LCD panels. Neither is OLED. |
| Refresh ceiling | 165Hz native, 180Hz overclock | 240Hz | Quote the native and overclocked figures accurately. |
| Frame interval at listed native ceiling | 6.06 ms at 165Hz | 4.17 ms at 240Hz | It is a refresh-time calculation and not measured latency. |
| Published DCI-P3 coverage | 98% typical | 95% typical | Better color accuracy is not established by gamut coverage. |
| Stand movement | Tilt, height and pivot | Tilt, height and pivot | Either can be adjusted to suit a conventional desk. |
| HDR certification | DisplayHDR 400 | DisplayHDR 400 | Identical HDR performance is not proven by the shared certification. |
Trade-offs
What each pick costs you
With LG UltraGear 27-inch Nano IPS
- A one-cable USB-C laptop connection is not available.
With LG UltraGear 27-inch QHD 240Hz
- The USB ports are for peripherals and do not carry USB-C video or laptop charging.
Decision guide
How to decide
Get the 27GR83Q-B if your games regularly run well above 165 frames per second and you want a 240Hz IPS screen. The 27GP850-B is the better pick when its current offer is lower and 165Hz, or its 180Hz overclock, covers your system. Both stay 27-inch QHD monitors.
Filter first by the frame rate you really get
Your main games regularly exceeding 180 frames per second is what makes the 27GR83Q-B easier to justify. A demanding game that runs nearer 100 fps gets no extra rendered frames from a 240Hz ceiling. Resolution, game settings and the graphics system stay the main constraints.
Treat the GP850 overclock apart from its native specification
LG lists 165Hz plus an optional 180Hz overclock. Set 165 against 240 and the interval differs by 1.89 ms. Set 180 against 240 and it is 1.39 ms. Stating which mode you mean stops a small timing advantage from turning into an exaggerated purchasing claim.
Panel labels alone do not decide this comparison
Neither the GP850's Nano IPS branding nor its higher stated P3 coverage proves better accuracy. Both are QHD IPS-family displays with adjustable stands. On a mixed work and gaming desk, the current offer and whether you can use the extra refresh weigh more heavily.
What this page can’t tell you
- Input lag and pixel response are outside what refresh calculations measure.
- The gamut percentages come from manufacturer specifications and are not independent accuracy tests.
By the numbers
What the data shows
What we found across the computer monitors we compare, plus the checked facts behind each finding.
How many fit
Only 3 of the 50 models checked meet every need here: “At 120Hz or higher, motion looks smoother”, “Frames as visible as possible in competitive games”, and “A screen that stays comfortable for everyday office work”.
3 models fit, out of 50 checkedThe gap in numbers
LG UltraGear 27-inch QHD 240Hz lists 240 Hz for top refresh rate, 33% more than the 180 Hz on LG UltraGear 27-inch Nano IPS.
- LG UltraGear 27-inch Nano IPS
- 180 Hz
- LG UltraGear 27-inch QHD 240Hz
- 240 Hz
- Models with this figure
- 44 of 50
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “At 120Hz or higher, motion looks smoother”, “Frames as visible as possible in competitive games”, and “A screen that stays comfortable for everyday office work”. A need with no documented match is not counted.
How we calculatedFigures use the fastest published refresh mode. Resolution, connection and color settings decide when you get that rate. For context, 44 of 50 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| LG UltraGear 27-inch Nano IPS |
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| LG UltraGear 27-inch QHD 240Hz |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
LG UltraGear 27-inch Nano IPS
Your games typically run under what the higher-refresh monitor can offer.
See price & reviews on AmazonLG UltraGear 27-inch QHD 240Hz
Competitive games on your PC regularly go beyond 180 frames per second.
See price & reviews on AmazonEach link opens in a new tab.
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