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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you're focused on competitive gaming, the Acer XB323U-GX offers a very high refresh rate and features like Variable Refresh Rate that cater to a smoother gaming experience. However, if your primary use is for tasks requiring ultra-sharp image clarity, like digital photo editing or productivity, the LG UltraFine 5K excels with its higher screen resolution and superior text quality. The LG's glossy screen enhances color vividness but can be troublesome in bright environments due to reflections. For multimedia consumption, both have good color performance, but neither is the best for HDR content. The Acer's larger screen might offer a more immersive experience for media consumption, but the LG offers greater detail with its higher pixel density. 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 XB323U-GX (IPS)
- Very good refresh rate
- Good response time
Advantages of the LG UltraFine 5K 27MD5KL (IPS)
- Very good for productivity
- Good for media consumption
- Best in class text clarity
- Best in class image clarity
Key differences
Productivity
4.8
8.7
2560 x 1440
RESOLUTION
5120 x 2880
91 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 XB323U-GX (IPS) is poor.
Media Consumption
5.4
7.0
2560 x 1440
RESOLUTION
5120 x 2880
1000:1
NATIVE CONTRAST
1200:1
400 nits
SDR PEAK BRIGHTNESS
500 nits
600 nits
HDR PEAK BRIGHTNESS
Unknown
Matte
COATING
Glossy
The LG UltraFine 5K 27MD5KL (IPS) is good for media consumption, while the Acer XB323U-GX (IPS) is poor.
Print Photo Editing
Yes
No
The Acer XB323U-GX (IPS) is suitable for print photo editing while the LG UltraFine 5K 27MD5KL (IPS) is not suitable for print photo editing.
Key similarities
Casual Gaming
5.9
6.0
2560 x 1440
RESOLUTION
5120 x 2880
270Hz
REFRESH RATE
60Hz
1000:1
NATIVE CONTRAST
1200:1
400 nits
SDR PEAK BRIGHTNESS
500 nits
600 nits
HDR PEAK BRIGHTNESS
Unknown
95.0 %
DCI-P3 COLOR GAMUT
99.0 %
Matte
COATING
Glossy
Although they have very similar scores, PerfectRec considers LG UltraFine 5K 27MD5KL (IPS) to be only fair for casual gaming, while the Acer XB323U-GX (IPS) is poor.
Competitive Gaming
5.3
5.0
270Hz
REFRESH RATE
60Hz
8.0 ms
TOTAL RESPONSE TIME
14.0 ms
48 - 270 Hz
VARIABLE REFRESH RATE
N/A
Yes
STROBING / BFI
No
400 nits
SDR PEAK BRIGHTNESS
500 nits
The Acer XB323U-GX (IPS) and LG UltraFine 5K 27MD5KL (IPS) are both poor for competitive gaming.
Cost
$1,147
$1,179
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The Acer XB323U-GX (IPS) has a price of $1,147 and the LG UltraFine 5K 27MD5KL (IPS) costs $1,179.
HDR Gaming and Media Consumption
No
No
Both the Acer XB323U-GX (IPS) and LG UltraFine 5K 27MD5KL (IPS) are not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Acer XB323U-GX (IPS) and LG UltraFine 5K 27MD5KL (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer XB323U-GX (IPS) and LG UltraFine 5K 27MD5KL (IPS) are not suitable for HDR video editing and color grading.
Give feedback
We’re constantly working to improve.
How the Acer XB323U-GX (IPS) and the LG UltraFine 5K 27MD5KL (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer XB323U-GX (IPS) | LG UltraFine 5K 27MD5KL (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,147 | $1,179 | ||
Screen Size | |||
Screen Size | 32" | 27" | |
Resolution | |||
Resolution | 2560 x 1440 | 5120 x 2880 | |
Screen Type | |||
Screen Type | LED | LED | |
Screen Sub-type | |||
Screen Sub-type | IPS | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | 16 | N/A | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 1000:1 | 1200:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 400 nits | 500 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 600 nits | Unknown | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | No | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 173.4 % | 100 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 8 ms | 14 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 270 Hz | N/A | |
Strobing / BFI | |||
Strobing / BFI | Yes | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8.5/10 | 5/10 | |
Ghosting Score | |||
Ghosting Score | 7.6/10 | 6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 91 PPI | 218 PPI | |
Coating | |||
Coating | Matte | Glossy | |
Text Clarity Score | |||
Text Clarity Score | 6.1/10 | 10/10 | |
Image Clarity Score | |||
Image Clarity Score | 6.1/10 | 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 | 1 | 0 | |
Give feedback
We're constantly perfecting our model
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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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