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What we think
The PerfectRec monitor team Learn more
Updated April 22, 2024·
If you play competitive games and are looking for a monitor that excels in responsiveness, the Acer X27U with its higher refresh rate and lower total response time should offer a smoother experience. However, for immersive HDR gaming and media consumption, the Gigabyte CO49DQ's larger screen and superior peak brightness could provide a more engaging visual impact, although its wider shape might not be as suitable for productivity tasks that benefit from a traditional aspect ratio. The Acer's advantage in color accuracy also makes it a better option for digital photo editing, while the Gigabyte's strengths lie in color volume and gamut, potentially offering richer, more vibrant hues for HDR video editing. Consider these trade-offs in terms of your specific needs and how much you're willing to invest. 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
- Very good refresh rate
- Good image clarity
Advantages of the Gigabyte CO49DQ (QD-OLED)
- Best in class for media consumption
- Best in class brightness
- Best in class color volume
Key differences
Competitive Gaming
8.8
5.5
240Hz
REFRESH RATE
144Hz
1.4 ms
TOTAL RESPONSE TIME
0.0 ms
20 - 240 Hz
VARIABLE REFRESH RATE
48 - 144 Hz
No
STROBING / BFI
No
211 nits
SDR PEAK BRIGHTNESS
1000 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the Gigabyte CO49DQ (QD-OLED) is poor.
Media Consumption
7.5
9.8
2560 x 1440
RESOLUTION
5120 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
1000 nits
603 nits
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Matte
The Gigabyte CO49DQ (QD-OLED) is best in class for media consumption, while the Acer X27U (W-OLED) is good.
Cost
$1,000
$1,100
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The Acer X27U (W-OLED) has a price of $1,000 and the Gigabyte CO49DQ (QD-OLED) costs $1,100.
HDR Video Editing and Color Grading
No
Yes
The Acer X27U (W-OLED) is not suitable for HDR video editing and color grading while the Gigabyte CO49DQ (QD-OLED) is suitable for HDR video editing and color grading.
Print Photo Editing
No
Yes
The Acer X27U (W-OLED) is not suitable for print photo editing while the Gigabyte CO49DQ (QD-OLED) is suitable for print photo editing.
Key similarities
Casual Gaming
9.5
9.9
2560 x 1440
RESOLUTION
5120 x 1440
240Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
1000 nits
603 nits
HDR PEAK BRIGHTNESS
Unknown
95.5 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Matte
The Gigabyte CO49DQ (QD-OLED) and Acer X27U (W-OLED) are both best in class for casual gaming.
Productivity
5.8
5.8
2560 x 1440
RESOLUTION
5120 x 1440
111 PPI
PIXELS PER INCH
108 PPI
Yes
ADJUSTABLE STAND
No
Matte
COATING
Matte
The Gigabyte CO49DQ (QD-OLED) and Acer X27U (W-OLED) are both poor for productivity.
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and Gigabyte CO49DQ (QD-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and Gigabyte CO49DQ (QD-OLED) are suitable for digital photo editing.
Give feedback
We’re constantly working to improve.
How the Acer X27U (W-OLED) and the Gigabyte CO49DQ (QD-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | Gigabyte CO49DQ (QD-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,100 | ||
Screen Size | |||
Screen Size | 27" | 49" | |
Resolution | |||
Resolution | 2560 x 1440 | 5120 x 1440 | |
Screen Type | |||
Screen Type | OLED | OLED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | QD-OLED | |
Refresh Rate | |||
Refresh Rate | 240Hz | 144Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | Inf:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 1000 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 % | 153.1 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 0.03 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 48 - 144 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 6.6/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 10/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 108 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 6.6/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 7/10 | |
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 | 2 | |
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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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Staff Expert & Software Engineer
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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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