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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If price is a major consideration and competitive gaming is your priority, the BenQ XL2566K, with its rapid response and high refresh rate, is a strong choice, but expect lower image quality and less vibrant colors compared to pricier monitors. The Acer X27U, while costly, offers vibrant colors, deeper blacks thanks to its OLED technology, and is well-suited for HDR gaming and media viewing, but its performance in fast-paced games isn't as top-tier as specialized gaming monitors like the BenQ. For graphic design or color-critical work, the Acer outperforms the BenQ significantly. If you're a casual gamer who also uses the monitor for productivity and enjoys media, the Acer might be worth the investment; for dedicated competitive gaming, the BenQ provides the necessary performance at a lower cost. 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 Acer X27U (W-OLED)
- Best in class for casual gaming
- Good for media consumption
- Good image clarity
- Best in class contrast
- Best in class response time
Advantages of the BenQ XL2566K (TN)
- Excellent for competitive gaming
- Best in class refresh rate
Key differences
Casual Gaming
9.5
5.9
2560 x 1440
RESOLUTION
1920 x 1080
240Hz
REFRESH RATE
360Hz
Inf:1
NATIVE CONTRAST
1131:1
211 nits
SDR PEAK BRIGHTNESS
303 nits
603 nits
HDR PEAK BRIGHTNESS
N/A
95.5 %
DCI-P3 COLOR GAMUT
N/A
Matte
COATING
Matte
The Acer X27U (W-OLED) is best in class for casual gaming, while the BenQ XL2566K (TN) is poor.
Productivity
5.8
4.8
2560 x 1440
RESOLUTION
1920 x 1080
111 PPI
PIXELS PER INCH
91 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Acer X27U (W-OLED) and BenQ XL2566K (TN) are both poor for productivity, though the Acer X27U (W-OLED) is somewhat better.
Media Consumption
7.5
5.1
2560 x 1440
RESOLUTION
1920 x 1080
Inf:1
NATIVE CONTRAST
1131:1
211 nits
SDR PEAK BRIGHTNESS
303 nits
603 nits
HDR PEAK BRIGHTNESS
N/A
Matte
COATING
Matte
The Acer X27U (W-OLED) is good for media consumption, while the BenQ XL2566K (TN) is poor.
Cost
$1,000
$599
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The Acer X27U (W-OLED) has a price of $1,000 and the BenQ XL2566K (TN) costs $599.
HDR Gaming and Media Consumption
Yes
No
The Acer X27U (W-OLED) is suitable for HDR gaming and media consumption while the BenQ XL2566K (TN) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
No
The Acer X27U (W-OLED) is suitable for digital photo editing while the BenQ XL2566K (TN) is not suitable for digital photo editing.
Key similarities
Competitive Gaming
8.8
9.2
240Hz
REFRESH RATE
360Hz
1.4 ms
TOTAL RESPONSE TIME
5.2 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 360 Hz
No
STROBING / BFI
Yes
211 nits
SDR PEAK BRIGHTNESS
303 nits
Although they have very similar scores, PerfectRec considers BenQ XL2566K (TN) to be excellent for competitive gaming, while the Acer X27U (W-OLED) is very good.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and BenQ XL2566K (TN) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X27U (W-OLED) and BenQ XL2566K (TN) are not suitable for print photo editing.
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We’re constantly working to improve.
How the Acer X27U (W-OLED) and the BenQ XL2566K (TN) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | BenQ XL2566K (TN) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $599 | ||
Screen Size | |||
Screen Size | 27" | 25" | |
Resolution | |||
Resolution | 2560 x 1440 | 1920 x 1080 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | TN | |
Refresh Rate | |||
Refresh Rate | 240Hz | 360Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1131:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 303 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | N/A | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 96.5 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 5.2 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 360 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | Yes | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 9.5/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 8.1/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 91 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 6.1/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 6.1/10 | |
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."
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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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