A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you prioritize an immersive gaming experience and enjoy vivid colors with deep blacks, the Acer X34V with its QD-OLED panel and higher refresh rate is better suited for you, and it's also more affordable. However, if your focus is on high-resolution professional tasks like photo editing, the LG UltraFine 5K offers superior text clarity and image detail with its higher pixels per inch, despite its higher price point and less gaming capability. The LG’s glossy coating can make colors pop, but it might also reflect more light, potentially causing glare. 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 X34V (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Good refresh rate
- Best in class contrast
- Best in class color volume
- Best in class response time
Advantages of the LG UltraFine 5K 27MD5KL (IPS)
- Very good for productivity
- Best in class text clarity
- Best in class image clarity
- Good brightness
Key differences
Casual Gaming
9.6
6.0
3440 x 1440
RESOLUTION
5120 x 2880
175Hz
REFRESH RATE
60Hz
Inf:1
NATIVE CONTRAST
1200:1
250 nits
SDR PEAK BRIGHTNESS
500 nits
1000 nits
HDR PEAK BRIGHTNESS
Unknown
99.0 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Glossy
The Acer X34V (QD-OLED) is best in class for casual gaming, while the LG UltraFine 5K 27MD5KL (IPS) is only fair.
Productivity
5.7
8.7
3440 x 1440
RESOLUTION
5120 x 2880
109 PPI
PIXELS PER INCH
218 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Glossy
The LG UltraFine 5K 27MD5KL (IPS) is very good for productivity, while the Acer X34V (QD-OLED) is poor.
Media Consumption
9.5
7.0
3440 x 1440
RESOLUTION
5120 x 2880
Inf:1
NATIVE CONTRAST
1200:1
250 nits
SDR PEAK BRIGHTNESS
500 nits
1000 nits
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Glossy
The Acer X34V (QD-OLED) is best in class for media consumption, while the LG UltraFine 5K 27MD5KL (IPS) is good.
Cost
$700
$1,179
$0
$500
$1,000
$1,500
$2,000
The Acer X34V (QD-OLED) has a price of $700 and the LG UltraFine 5K 27MD5KL (IPS) costs $1,179.
HDR Gaming and Media Consumption
Yes
No
The Acer X34V (QD-OLED) is suitable for HDR gaming and media consumption while the LG UltraFine 5K 27MD5KL (IPS) is not suitable for HDR gaming and media consumption.
Key similarities
Competitive Gaming
5.2
5.0
175Hz
REFRESH RATE
60Hz
1.0 ms
TOTAL RESPONSE TIME
14.0 ms
48 - 175 Hz
VARIABLE REFRESH RATE
N/A
No
STROBING / BFI
No
250 nits
SDR PEAK BRIGHTNESS
500 nits
The Acer X34V (QD-OLED) and LG UltraFine 5K 27MD5KL (IPS) are both poor for competitive gaming.
Digital Photo Editing
Yes
Yes
Both the Acer X34V (QD-OLED) and LG UltraFine 5K 27MD5KL (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X34V (QD-OLED) and LG UltraFine 5K 27MD5KL (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X34V (QD-OLED) and LG UltraFine 5K 27MD5KL (IPS) are not suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the Acer X34V (QD-OLED) and the LG UltraFine 5K 27MD5KL (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer X34V (QD-OLED) | LG UltraFine 5K 27MD5KL (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$700 | $1,179 | ||
Screen Size | |||
Screen Size | 34" | 27" | |
Resolution | |||
Resolution | 3440 x 1440 | 5120 x 2880 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | QD-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 175Hz | 60Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1200:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 250 nits | 500 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1000 nits | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 104 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1 ms | 14 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 175 Hz | N/A | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7.2/10 | 5/10 | |
Ghosting Score | |||
Ghosting Score | 9.6/10 | 6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 109 PPI | 218 PPI | |
Coating | |||
Coating | Matte | Glossy | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 10/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 10/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 1 | 0 | |
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 | |
Give feedback
We're constantly perfecting our model
More comparisons for you
Compare Acer X34V (QD-OLED) vs. AOC AG276QZD (W-OLED)
VS
Compare Acer X34V (QD-OLED) vs. Pixio PX277 OLED Max (W-OLED)
VS
Compare Acer X34V (QD-OLED) vs. Nubia RedMagic GM001J (IPS MiniLED)
VS
Compare LG UltraFine 5K 27MD5KL (IPS) vs. Dell Alienware AW3225QF (QD-OLED)
VS
Compare LG UltraFine 5K 27MD5KL (IPS) vs. Samsung Odyssey OLED G9 G95SC (QD-OLED)
VS
Compare LG UltraFine 5K 27MD5KL (IPS) vs. Gigabyte FO32U2P (QD-OLED)
VS
FAQs
Why trust us
This information was produced and vetted by the PerfectRec monitors team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest monitor information and makes it digestible for you.
By the numbers
210
Monitors evaluated
10,500
Monitors stats compiled
15
Proprietary Monitors ratings developed
117,200
Recommendations made
17,580
Consumer hours saved
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.
Featured in
