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What we think
The PerfectRec monitor team Learn more
Updated April 12, 2024·
If you're a competitive gamer valuing fast response times and a high refresh rate, the Acer X27U with its excellent overall performance will serve you well while saving you money. It's also good for HDR gaming and media but falls short in productivity due to moderate image clarity and text quality. Conversely, the AOC AG456UCZD excels in productivity with its larger screen and ultra-wide aspect ratio, enhancing immersion for media and gaming. It supports HDR and photo editing with a wide color gamut, though costs more. For those prioritizing cost and competitive gaming, the Acer is a solid choice; for immersive experiences and vast workspace at a higher price, AOC stands out. 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)
- Very good for competitive gaming
- Good for media consumption
- Good image clarity
Advantages of the AOC AG456UCZD (W-OLED)
- The AOC AG456UCZD (W-OLED) has no clear advantages over the Acer X27U (W-OLED).
Key differences
Competitive Gaming
8.8
6.0
240Hz
REFRESH RATE
240Hz
1.4 ms
TOTAL RESPONSE TIME
0.0 ms
20 - 240 Hz
VARIABLE REFRESH RATE
48 - 240 Hz
No
STROBING / BFI
No
211 nits
SDR PEAK BRIGHTNESS
200 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the AOC AG456UCZD (W-OLED) is only fair.
Productivity
5.8
3.8
2560 x 1440
RESOLUTION
3440 x 1440
111 PPI
PIXELS PER INCH
83 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Acer X27U (W-OLED) and AOC AG456UCZD (W-OLED) are both poor for productivity, though the Acer X27U (W-OLED) is somewhat better.
Media Consumption
7.5
5.9
2560 x 1440
RESOLUTION
3440 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
200 nits
603 nits
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Matte
The Acer X27U (W-OLED) is good for media consumption, while the AOC AG456UCZD (W-OLED) is poor.
Cost
$1,000
$1,400
$500
$1,000
$1,500
$2,000
$2,500
The Acer X27U (W-OLED) has a price of $1,000 and the AOC AG456UCZD (W-OLED) costs $1,400.
Print Photo Editing
No
Yes
The Acer X27U (W-OLED) is not suitable for print photo editing while the AOC AG456UCZD (W-OLED) is suitable for print photo editing.
Key similarities
Casual Gaming
9.5
9.6
2560 x 1440
RESOLUTION
3440 x 1440
240Hz
REFRESH RATE
240Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
200 nits
603 nits
HDR PEAK BRIGHTNESS
Unknown
95.5 %
DCI-P3 COLOR GAMUT
98.5 %
Matte
COATING
Matte
The AOC AG456UCZD (W-OLED) and Acer X27U (W-OLED) are both best in class for casual gaming.
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and AOC AG456UCZD (W-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and AOC AG456UCZD (W-OLED) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and AOC AG456UCZD (W-OLED) are not suitable for HDR video editing and color grading.
Give feedback
We’re constantly working to improve.
How the Acer X27U (W-OLED) and the AOC AG456UCZD (W-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | AOC AG456UCZD (W-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,400 | ||
Screen Size | |||
Screen Size | 27" | 44.5" | |
Resolution | |||
Resolution | 2560 x 1440 | 3440 x 1440 | |
Screen Type | |||
Screen Type | OLED | OLED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | W-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 240Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 200 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 0.03 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 48 - 240 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 8/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 10/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 83 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 3.8/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 4.9/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 2 | 0 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 0 | 3 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Give feedback
We're constantly perfecting our model
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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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