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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If competitive gaming is your main focus, with a strong preference for fast response times and the least ghosting possible, then the BenQ XL2566K (TN) monitor would be well-suited for you, despite its higher price. However, if you value a wider, more immersive display for productivity tasks and media consumption, and you don't mind a slight compromise on the gaming front, the LG 34GN850B (IPS) with its larger screen and better image clarity could be the better option. Keep in mind the BenQ's emphasis on gaming performance may make it less ideal for tasks requiring accurate colors and wide viewing angles, where the LG would excel. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the BenQ XL2566K (TN)
- Excellent for competitive gaming
- Best in class refresh rate
Advantages of the LG 34GN850B (IPS)
- The LG 34GN850B (IPS) has no clear advantages over the BenQ XL2566K (TN).
Key differences
Competitive Gaming
9.2
4.5
360Hz
REFRESH RATE
144Hz
5.2 ms
TOTAL RESPONSE TIME
6.2 ms
20 - 360 Hz
VARIABLE REFRESH RATE
20 - 160 Hz
Yes
STROBING / BFI
No
303 nits
SDR PEAK BRIGHTNESS
359 nits
The BenQ XL2566K (TN) is excellent for competitive gaming, while the LG 34GN850B (IPS) is poor.
Productivity
4.8
5.9
1920 x 1080
RESOLUTION
3440 x 1440
91 PPI
PIXELS PER INCH
108 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The LG 34GN850B (IPS) and BenQ XL2566K (TN) are both poor for productivity, though the LG 34GN850B (IPS) is somewhat better.
Media Consumption
5.1
5.9
1920 x 1080
RESOLUTION
3440 x 1440
1131:1
NATIVE CONTRAST
950:1
303 nits
SDR PEAK BRIGHTNESS
359 nits
N/A
HDR PEAK BRIGHTNESS
436 nits
Matte
COATING
Matte
The LG 34GN850B (IPS) and BenQ XL2566K (TN) are both poor for media consumption, though the LG 34GN850B (IPS) is somewhat better.
Cost
$599
$750
$200
$400
$600
$800
$1,000
$1,200
The BenQ XL2566K (TN) has a price of $599 and the LG 34GN850B (IPS) costs $750.
Key similarities
Casual Gaming
5.9
5.9
1920 x 1080
RESOLUTION
3440 x 1440
360Hz
REFRESH RATE
144Hz
1131:1
NATIVE CONTRAST
950:1
303 nits
SDR PEAK BRIGHTNESS
359 nits
N/A
HDR PEAK BRIGHTNESS
436 nits
N/A
DCI-P3 COLOR GAMUT
94.5 %
Matte
COATING
Matte
The LG 34GN850B (IPS) and BenQ XL2566K (TN) are both poor for casual gaming.
HDR Gaming and Media Consumption
No
No
Both the BenQ XL2566K (TN) and LG 34GN850B (IPS) are not suitable for HDR gaming and media consumption.
Digital Photo Editing
No
No
Both the BenQ XL2566K (TN) and LG 34GN850B (IPS) are not suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the BenQ XL2566K (TN) and LG 34GN850B (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the BenQ XL2566K (TN) and LG 34GN850B (IPS) are not suitable for print photo editing.
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We’re constantly working to improve.
How the BenQ XL2566K (TN) and the LG 34GN850B (IPS) compare to other monitors
Spec Comparison
 |  | |
| BenQ XL2566K (TN) | LG 34GN850B (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$599 | $750 | ||
Screen Size | |||
Screen Size | 25" | 34" | |
Resolution | |||
Resolution | 1920 x 1080 | 3440 x 1440 | |
Screen Type | |||
Screen Type | LED | LED | |
Screen Sub-type | |||
Screen Sub-type | TN | IPS | |
Refresh Rate | |||
Refresh Rate | 360Hz | 144Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 1131:1 | 950:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 303 nits | 359 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | N/A | 436 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | No | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 96.5 % | 99 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 5.2 ms | 6.2 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 360 Hz | 20 - 160 Hz | |
Strobing / BFI | |||
Strobing / BFI | Yes | No | |
Persistence Blur Score | |||
Persistence Blur Score | 9.5/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 8.1/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 91 PPI | 108 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.1/10 | 7/10 | |
Image Clarity Score | |||
Image Clarity Score | 6.1/10 | 7/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 2 | 2 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 0 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Shopping
BenQ XL2566K (TN)
See more
Dig into reviews and images
Tech Radar
Nick Ross | August 2023
"It’s not for everyone in the same way that a top fuel dragster isn’t everyone’s perfect daily driver. The BenQ Zowie XL2566K succeeds in delivering the fastest, sharpest and smoothest display for pro FPS players and that’s all it wanted to do. Its other limitations and premium price tag mean it’s a bespoke tool for a niche market, rather than another general gaming monitor for those who like playing games."
LG 34GN850B (IPS)
See more
Dig into reviews and images
TechSpot
Tim Schiesser | August 2020
"Mid-range 3440 x 1440 144Hz VA monitors are ~$500 to $600 these days. You are getting a much better product for the higher price of the LG, with faster response times and better colors (outside of the contrast ratio), but this is definitely a monitor that is reserved for those that want the best of the best and are willing to pay for it."
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This information was produced and vetted by the PerfectRec monitors team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest monitor information and makes it digestible for you.
By the numbers
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About the monitor team
Joe Golden, Ph.D
CEO and Monitors Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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