The catch
ASUS TUF Gaming 27-inch QHD 170Hz
To hit 170Hz you must overclock and use a compatible DisplayPort source.
Side by side
ASUS VG27AQL1A vs LG 27GR83Q: The PC has to exceed ASUS’s 170Hz ceiling before LG’s 240Hz matters
Quick verdict
Go with the 27GR83Q for a 240Hz QHD gaming setup. If your PC spends most of its time below the 170Hz maximum of the VG27AQL1A and you need a flexible stand, that model suits.
Before you buy
Why, and what it costs you
Detail should be compared at the actual screen size
VG27AQL1A comes to about 108.8 pixels per inch and 27GR83Q-B to 108.8 as well. Close pixel densities mean layout and connection needs separate them more strongly.
Where this comes from
Pixels per inch = √(width² + height²) / diagonal. Values used: 2560 × 1440 at 27 inches and 2560 × 1440 at 27 inches. Using published nominal diagonals makes them approximate.
The catch
LG UltraGear 27-inch QHD 240Hz
Setting 240Hz does not mean your games will render at 240 frames per second.
ASUS TUF Gaming 27-inch QHD 170Hz
- Why pick it
- Play under the 170Hz ceiling
- Favor the TUF ergonomic setup
- The catch
- To hit 170Hz you must overclock and use a compatible DisplayPort source.
LG UltraGear 27-inch QHD 240Hz
- Why pick it
- Run competitive games close to 240fps
- Look for a higher refresh ceiling at QHD
- The catch
- Setting 240Hz does not mean your games will render at 240 frames per second.
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What this page compares
A 240Hz QHD gaming setup points to the 27GR83Q. The VG27AQL1A suits a PC that spends most of its time below its 170Hz maximum and needs a flexible stand.
The LG favors more frames over more pixels
Which one fits
Pick the situations that sound like you
Play under the 170Hz ceiling
Through the appropriate DisplayPort setup, VG27AQL1A supports up to 170 Hz. Its HDMI ceiling is 144 Hz, and that is the limit that matters for an HDMI-only source.
- ASUS TUF Gaming 27-inch QHD 170Hz
- Better fit
- LG UltraGear 27-inch QHD 240Hz
- Depends
Run QHD games at 240 Hz
ASUS stops at 170 Hz, while LG 27GR83Q reaches 240 Hz. A game delivering near 240 frames per second can make use of the LG's additional refresh opportunities.
- ASUS TUF Gaming 27-inch QHD 170Hz
- Not suitable
- LG UltraGear 27-inch QHD 240Hz
- Better fit
Favor the TUF ergonomic setup
In a 615 mm-wide body with a 215 mm stand depth, VG27AQL1A provides the TUF ergonomic setup. Check the actual adjustment positions against the desk and seating.
- ASUS TUF Gaming 27-inch QHD 170Hz
- Better fit
- LG UltraGear 27-inch QHD 240Hz
- Depends
Need a QHD ceiling of 240 Hz
A 240 Hz QHD ceiling, 70 Hz higher than the ASUS maximum, comes with 27GR83Q. That alone does not establish complete input latency.
- ASUS TUF Gaming 27-inch QHD 170Hz
- Not suitable
- LG UltraGear 27-inch QHD 240Hz
- Better fit
In practice
Differences you will notice
Detail should be compared at the actual screen size
VG27AQL1A comes to about 108.8 pixels per inch and 27GR83Q-B to 108.8 as well. Close pixel densities mean layout and connection needs separate them more strongly.
How we worked this out
Pixels per inch = √(width² + height²) / diagonal. Values used: 2560 × 1440 at 27 inches and 2560 × 1440 at 27 inches. Using published nominal diagonals makes them approximate.
Keep native detail apart from game speed
Per frame, VG27AQL1A draws 3.7 million native pixels and 27GR83Q-B draws 3.7 million. The refresh ceilings are 170Hz and 240Hz respectively.
How we worked this out
Native pixels = width × height. Refresh interval =1000 / Hz, giving 5.9 and 4.2 ms. These are calculations of signal and cadence and not measured frame rates, input lag or pixel response.
At unchanged QHD resolution, LG's refresh ceiling is about 41% higher
Compared with the 170Hz ASUS maximum, the 240Hz panel gets 70 more refresh opportunities per second.
How we worked this out
(240 / 170 - 1) × 100 = 41.2%. Each uses 2560 × 1440 pixels. Nothing here promises a game-frame-rate increase.
Option A
ASUS, VG27AQL1A
TUF Gaming 27-inch QHD 170Hz
A USB hub and a wide-gamut panel are what the VG27AQL1A brings to the familiar 27-inch QHD gaming format. Since its 170Hz ceiling is only a small step from 165Hz, give more weight to the connections and the current offer.
- Best for
- QHD gaming that also wants a wider color gamut and a USB hub
Facts we checked
- Up to 170Hz refresh on a 27-inch, 2560 by 1440 IPS panel
- Covers 96 percent of DCI-P3
- Inputs are DisplayPort and two HDMI, with two USB-A downstream ports
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 | ASUS TUF Gaming 27-inch QHD 170Hz | LG UltraGear 27-inch QHD 240Hz | In practice |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 2560 × 1440 | Usable logical workspace changes with operating-system scaling. |
| Panel diagonal | 27 in | 27 in | The measured active diagonal may differ slightly from a nominal screen class. |
| Maximum refresh | 170Hz / 170Hz optional mode | 240Hz | Look at the exact input, resolution and overclock conditions. |
| Panel technology | IPS | IPS | A measured color or motion winner is not established by panel type alone. |
| Laptop power | No USB-C laptop charging | No USB-C laptop charging | For the desired delivery, the host, cable and negotiated power profile all have to support it. |
| Chassis width | 615 mm | Check exact drawing | Leave additional room for cables, arms and neighboring equipment. |
| Stand depth | 215 mm | Check exact drawing | More desk depth can be taken by the included stand than by the display cabinet. |
Trade-offs
What each pick costs you
With ASUS TUF Gaming 27-inch QHD 170Hz
- A wide gamut doesn't automatically make ordinary sRGB content more accurate.
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
The 27GR83Q is for a 240Hz QHD gaming setup. The VG27AQL1A is for a PC that spends most of its time below its 170Hz maximum and needs a flexible stand.
The LG favors more frames over more pixels
Each is a 27-inch 2560 by 1440 IPS display. A faster GPU or CPU helps only when the game can deliver the additional frames.
The ASUS headline figure is an overclock mode
The VG27AQL1A reaches 170Hz through the appropriate DisplayPort setup. HDMI tops out at 144Hz, so a buyer using HDMI only should go by that figure.
The interval gain that counts is under two milliseconds
Going from 170 to 240Hz cuts the theoretical interval from 5.88 to 4.17 ms. Total latency also includes the game, the input path and pixel response.
What this page can’t tell you
- These pixel density and refresh interval figures are calculated from published specifications and do not come from a measured visual-quality or latency test.
- The USB-C power figure is the highest level that can be negotiated. It does not guarantee full-speed charging for every laptop.
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
This guide keeps all 50 models in play. The pick rests on the facts and trade-offs on this page.
50 models fit, out of 50 checkedThe gap in numbers
LG UltraGear 27-inch QHD 240Hz lists 240 Hz for top refresh rate, 41% more than the 170 Hz on ASUS TUF Gaming 27-inch QHD 170Hz.
- ASUS TUF Gaming 27-inch QHD 170Hz
- 170 Hz
- LG UltraGear 27-inch QHD 240Hz
- 240 Hz
- Models with this figure
- 44 of 50
Show the facts and the math
How we countedNo needs are preselected here. Open the matcher and add the ones that apply to your home, room or setup.
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 |
|---|---|---|---|
| ASUS TUF Gaming 27-inch QHD 170Hz | None of these needs is a documented match |
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| LG UltraGear 27-inch QHD 240Hz | None of these needs is a documented match |
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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.
ASUS TUF Gaming 27-inch QHD 170Hz
Play under the 170Hz ceiling
See price & reviews on AmazonLG UltraGear 27-inch QHD 240Hz
Run competitive games close to 240fps
See price & reviews on AmazonEach link opens in a new tab.
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