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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you prioritize top-notch gaming with the best visual quality and can invest in a premium product, the Acer X27U with its OLED panel offers superior contrast and is excellent for HDR gaming and media consumption. However, for everyday productivity and casual gaming at a more affordable price, the LG 27GP850 provides good performance and image clarity with a high refresh rate, which is suitable for fast-paced games. While the Acer has better overall image quality and higher peak brightness, the LG offers good value for a midrange price and performs well in various tasks but isn't the best choice for HDR content. 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
- Very good refresh rate
- Best in class contrast
- Best in class response time
Advantages of the LG 27GP850 (IPS)
- Good text clarity
Key differences
Casual Gaming
9.5
6.0
2560 x 1440
RESOLUTION
2560 x 1440
240Hz
REFRESH RATE
180Hz
Inf:1
NATIVE CONTRAST
807:1
211 nits
SDR PEAK BRIGHTNESS
365 nits
603 nits
HDR PEAK BRIGHTNESS
472 nits
95.5 %
DCI-P3 COLOR GAMUT
95.6 %
Matte
COATING
Matte
The Acer X27U (W-OLED) is best in class for casual gaming, while the LG 27GP850 (IPS) is only fair.
Competitive Gaming
8.8
6.0
240Hz
REFRESH RATE
180Hz
1.4 ms
TOTAL RESPONSE TIME
6.8 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 180 Hz
No
STROBING / BFI
Yes
211 nits
SDR PEAK BRIGHTNESS
365 nits
The Acer X27U (W-OLED) is very good for competitive gaming, while the LG 27GP850 (IPS) is only fair.
Media Consumption
7.5
5.9
2560 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
807:1
211 nits
SDR PEAK BRIGHTNESS
365 nits
603 nits
HDR PEAK BRIGHTNESS
472 nits
Matte
COATING
Matte
The Acer X27U (W-OLED) is good for media consumption, while the LG 27GP850 (IPS) is poor.
Cost
$1,000
$389
$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 LG 27GP850 (IPS) costs $389.
HDR Gaming and Media Consumption
Yes
No
The Acer X27U (W-OLED) is suitable for HDR gaming and media consumption while the LG 27GP850 (IPS) is not suitable for HDR gaming and media consumption.
Key similarities
Productivity
5.8
6.2
2560 x 1440
RESOLUTION
2560 x 1440
111 PPI
PIXELS PER INCH
109 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
Although they have very similar scores, PerfectRec considers LG 27GP850 (IPS) to be only fair for productivity, while the Acer X27U (W-OLED) is poor.
Digital Photo Editing
Yes
Yes
Both the Acer X27U (W-OLED) and LG 27GP850 (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X27U (W-OLED) and LG 27GP850 (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X27U (W-OLED) and LG 27GP850 (IPS) 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 LG 27GP850 (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer X27U (W-OLED) | LG 27GP850 (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $389 | ||
Screen Size | |||
Screen Size | 27" | 27" | |
Resolution | |||
Resolution | 2560 x 1440 | 2560 x 1440 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 240Hz | 180Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 807:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 211 nits | 365 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 603 nits | 472 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 101.4 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1.4 ms | 6.8 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 180 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | Yes | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 7.3/10 | |
Ghosting Score | |||
Ghosting Score | 9.5/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 109 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.7/10 | 7/10 | |
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 | 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
LG 27GP850 (IPS)
See more
Dig into reviews and images
TechSpot
Tim Schiesser | May 2021
"In my opinion, the LG 27GP850 is the best in its class from the monitors I've tested, with the combination of great response times and a functional sRGB mode pushing it over the edge. It's generally worth the price premium and its overall balance of features with few weak areas makes it a monitor you won't be disappointed to have."
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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