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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If high-end competitive gaming is a priority and you prefer a larger screen size, the Corsair 45WQHD240 (W-OLED) would be a good choice despite its higher price, offering better ghosting performance suitable for fast-paced games. However, for a mix of casual gaming and productivity, the Acer X27U (W-OLED) provides a balance of good gaming performance and image clarity at a lower cost. The Acer also has fair text quality, making it suitable for general use. The Corsair's wider aspect ratio is immersive for media consumption but has poorer text quality, which might not be optimal for productivity tasks. 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
- Very good for competitive gaming
- Good for media consumption
- Good image clarity
- Best in class response time
Advantages of the Corsair 45WQHD240 (W-OLED)
- The Corsair 45WQHD240 (W-OLED) has no clear advantages over the Acer X27U (W-OLED).
Key differences
Casual Gaming
9.5
8.1
2560 x 1440
RESOLUTION
3440 x 1440
240Hz
REFRESH RATE
240Hz
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
141 nits
603 nits
HDR PEAK BRIGHTNESS
632 nits
95.5 %
DCI-P3 COLOR GAMUT
97.6 %
Matte
COATING
Matte
The Acer X27U (W-OLED) is best in class for casual gaming, while the Corsair 45WQHD240 (W-OLED) is very good.
Competitive Gaming
8.8
5.4
240Hz
REFRESH RATE
240Hz
1.4 ms
TOTAL RESPONSE TIME
1.6 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 240 Hz
No
STROBING / BFI
No
211 nits
SDR PEAK BRIGHTNESS
141 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the Corsair 45WQHD240 (W-OLED) is poor.
Productivity
5.8
3.9
2560 x 1440
RESOLUTION
3440 x 1440
111 PPI
PIXELS PER INCH
84 PPI
Yes
ADJUSTABLE STAND
No
Matte
COATING
Matte
The Acer X27U (W-OLED) and Corsair 45WQHD240 (W-OLED) are both poor for productivity, though the Acer X27U (W-OLED) is somewhat better.
Media Consumption
7.5
5.7
2560 x 1440
RESOLUTION
3440 x 1440
Inf:1
NATIVE CONTRAST
Inf:1
211 nits
SDR PEAK BRIGHTNESS
141 nits
603 nits
HDR PEAK BRIGHTNESS
632 nits
Matte
COATING
Matte
The Acer X27U (W-OLED) is good for media consumption, while the Corsair 45WQHD240 (W-OLED) is poor.
Cost
$1,000
$1,700
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The Acer X27U (W-OLED) has a price of $1,000 and the Corsair 45WQHD240 (W-OLED) costs $1,700.
Key similarities
HDR Gaming and Media Consumption
Yes
Yes
Both the Acer X27U (W-OLED) and Corsair 45WQHD240 (W-OLED) are suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and Corsair 45WQHD240 (W-OLED) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and Corsair 45WQHD240 (W-OLED) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X27U (W-OLED) and Corsair 45WQHD240 (W-OLED) 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 Corsair 45WQHD240 (W-OLED) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | Corsair 45WQHD240 (W-OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $1,700 | ||
Screen Size | |||
Screen Size | 27" | 45" | |
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 | 141 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | 632 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | Yes | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 99.6 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 1.6 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 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 | 9.3/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 84 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 4/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 5.1/10 | |
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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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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