Main trade-off
LG UltraGear 27-inch Nano IPS
The 180Hz mode is an overclock, not the native refresh rate.
Head-to-head
LG 27GP850 vs 27GR83Q: 27GR83Q pays off when the PC regularly exceeds 165 fps
The short answer
Choose the 27GR83Q-B if your games regularly run well above 165 frames per second and you want a 240Hz IPS screen. Choose the 27GP850-B when its current offer is lower and 165Hz, or its 180Hz overclock, covers your system. Both remain 27-inch QHD monitors.
Before you choose
The reasoning and the trade-offs
The native-rate step saves 1.89 ms per refresh
Moving from 165Hz to 240Hz shortens the maximum-refresh interval by about 31.3%.
What this is based on
1000 ÷ 165 = 6.06 ms and 1000 ÷ 240 = 4.17 ms. The difference is 1.89 ms.
Main trade-off
LG UltraGear 27-inch QHD 240Hz
A 240Hz setting does not make games render at 240 frames per second.
LG UltraGear 27-inch Nano IPS
- Choose it for
- Your games usually stay below the higher monitor's refresh range.
- You want QHD Nano IPS and a meaningfully better current offer.
- Main trade-off
- The 180Hz mode is an overclock, not the native refresh rate.
LG UltraGear 27-inch QHD 240Hz
- Choose it for
- Your competitive games regularly exceed 180 frames per second.
- You need to check high-refresh support through an HDMI 2.1 connection.
- Main trade-off
- A 240Hz setting does not make games render at 240 frames per second.
About this comparison
Compare LG 27GP850-B and 27GR83Q-B for QHD gaming. Separate the 165Hz native rate from 180Hz overclock and see when 240Hz helps your system.
When 240Hz is worth more than a 165Hz Nano IPS screen
Winner by situation
Start with what you need it to do
Competitive games consistently above 180 fps
The GR83Q has additional refresh headroom.
- LG UltraGear 27-inch Nano IPS
- Good
- LG UltraGear 27-inch QHD 240Hz
- Better fit
Games usually below 165 fps
The higher ceiling may go unused, so a lower GP850 offer can matter more.
- LG UltraGear 27-inch Nano IPS
- Better fit
- LG UltraGear 27-inch QHD 240Hz
- Good
More space for office applications
Both are 27-inch QHD.
- LG UltraGear 27-inch Nano IPS
- Similar
- LG UltraGear 27-inch QHD 240Hz
- Similar
Choosing by the larger gamut percentage alone
Coverage is not a measured accuracy ranking.
- LG UltraGear 27-inch Nano IPS
- Depends
- LG UltraGear 27-inch QHD 240Hz
- Depends
What matters in practice
The differences that matter
The native-rate step saves 1.89 ms per refresh
Moving from 165Hz to 240Hz shortens the maximum-refresh interval by about 31.3%.
How we reached this conclusion
1000 ÷ 165 = 6.06 ms and 1000 ÷ 240 = 4.17 ms. The difference is 1.89 ms.
Using the overclock narrows the gap
At the GP850's 180Hz overclock the interval is 5.56 ms, leaving a 1.39 ms difference to 240Hz.
How we reached this conclusion
1000 ÷ 180 − 1000 ÷ 240 = 1.389 ms. Overclock operation depends on the supported mode and source.
The faster screen does not increase native pixel workload
Both panels use 3.69 million pixels per displayed frame.
How we reached this conclusion
2560 × 1440 = 3,686,400. Rendering 240 different frames instead of 165 can still demand more from the system.
Choice A
LG, 27GP850-B
UltraGear 27-inch Nano IPS
A familiar 1440p gaming size with a 165Hz native refresh rate and a 180Hz overclock option. It suits players who also leave documents and desktop apps open all day.
- Best matched use
- QHD gaming without moving to an OLED screen
Checked facts
- 27-inch 2560 by 1440 Nano IPS panel
- 165Hz native refresh rate with a 180Hz overclock option
- DisplayPort 1.4, HDMI and a USB hub
Choice B
LG, 27GR83Q-B
UltraGear 27-inch QHD 240Hz
A 240Hz IPS monitor keeps the familiar 27-inch QHD layout while giving high-frame-rate games more room to run. HDMI 2.1 makes the input specification worth checking against your graphics card.
- Best matched use
- Fast QHD games on the same screen used for work
Checked facts
- 27-inch 2560 by 1440 IPS panel at 240Hz
- HDMI 2.1 and DisplayPort inputs
- 95 percent DCI-P3 coverage and a height-adjustable pivoting stand
Meaningful differences
What changes the fit
| What changes | LG UltraGear 27-inch Nano IPS | LG UltraGear 27-inch QHD 240Hz | Why it matters |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 2560 × 1440 | Neither adds detail or desktop pixels. |
| Panel type | Nano IPS | IPS | Both use LCD panels rather than OLED. |
| Refresh ceiling | 165Hz native, 180Hz overclock | 240Hz | Use the native and overclocked figures accurately. |
| Frame interval at listed native ceiling | 6.06 ms at 165Hz | 4.17 ms at 240Hz | This is a refresh-time calculation, not measured latency. |
| Published DCI-P3 coverage | 98% typical | 95% typical | Gamut coverage does not establish better color accuracy. |
| Stand movement | Tilt, height and pivot | Tilt, height and pivot | Both can be adjusted for a conventional desk. |
| HDR certification | DisplayHDR 400 | DisplayHDR 400 | The shared certification does not prove identical HDR performance. |
What you give up
Every choice has a cost
If you choose LG UltraGear 27-inch Nano IPS
- There is no one-cable USB-C laptop connection.
If you choose LG UltraGear 27-inch QHD 240Hz
- USB ports serve peripherals, not USB-C video or laptop charging.
What matters in practice
How to make the call
Use your actual frame rate as the first filter
The 27GR83Q-B is easier to justify when your main games regularly exceed 180 frames per second. If a demanding game runs nearer 100 fps, a 240Hz ceiling does not create extra rendered frames. Resolution, game settings and the graphics system remain the main constraints.
Keep the GP850 overclock separate from its native specification
LG lists 165Hz with an optional 180Hz overclock. Comparing 165 with 240 gives a 1.89 ms interval difference. Comparing 180 with 240 gives 1.39 ms. Being clear about the mode keeps a small timing advantage from becoming an exaggerated purchasing claim.
The panel labels do not settle the entire comparison
The GP850's Nano IPS branding and higher stated P3 coverage are not proof of better accuracy. Both are QHD IPS-family displays with adjustable stands. For a mixed work and gaming desk, the current offer and whether the extra refresh can actually be used are stronger deciding factors.
What this comparison cannot tell you
- Refresh calculations do not measure input lag or pixel response.
- Gamut percentages are manufacturer specifications, not independent accuracy tests.
What the facts say
What the comparison shows
Useful conclusions from the current computer monitors comparison, followed by the checked facts used to reach them.
Compared set
Only 3 of 50 models checked match every need here: “Smoother motion at 120Hz or higher”, “Maximum frame visibility for competitive games”, and “A comfortable screen for everyday office work”.
3 matching models from 50 checkedMeasured difference
LG UltraGear 27-inch QHD 240Hz lists 240 Hz for maximum refresh rate, 33% above LG UltraGear 27-inch Nano IPS at 180 Hz.
- LG UltraGear 27-inch Nano IPS
- 180 Hz
- LG UltraGear 27-inch QHD 240Hz
- 240 Hz
- Comparable models
- 44 of 50
See the checked facts and calculation notes
Match countThe count uses the current product-to-need assignments for “Smoother motion at 120Hz or higher”, “Maximum frame visibility for competitive games”, and “A comfortable screen for everyday office work”. A need with no documented match does not count.
Calculation noteThis uses the highest published refresh mode. Resolution, connection and color settings can limit when that rate is available. 44 of 50 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| LG UltraGear 27-inch Nano IPS |
|
|
|
| LG UltraGear 27-inch QHD 240Hz |
|
|
|
Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
LG UltraGear 27-inch Nano IPS
Your games usually stay below the higher monitor's refresh range.
See price & reviews on AmazonLG UltraGear 27-inch QHD 240Hz
Your competitive games regularly exceed 180 frames per second.
See price & reviews on AmazonLinks open in a new tab.