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're a competitive gamer who values high refresh rates and response times, the AOC AG456UCZD with its OLED panel offers superior contrast and excellent performance for fast-paced games, though at a premium price and a lower resolution that may not be as sharp for productivity tasks. However, if you prioritize higher resolution for tasks like digital photo editing and productivity, the Asus VG28UQL1A with its IPS panel delivers clearer text and more workspace due to its 4K resolution, while still being suitable for casual gaming, all at a lower cost. Neither is ideal for media consumption, but the AOC may provide better color depth for HDR gaming. 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 AOC AG456UCZD (W-OLED)
- Best in class for casual gaming
- Very good refresh rate
- Best in class contrast
Advantages of the Asus VG28UQL1A (IPS)
- Very good for productivity
- Good for media consumption
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.6
7.2
3440 x 1440
RESOLUTION
3840 x 2160
240Hz
REFRESH RATE
144Hz
Inf:1
NATIVE CONTRAST
1000:1
200 nits
SDR PEAK BRIGHTNESS
350 nits
Unknown
HDR PEAK BRIGHTNESS
350 nits
98.5 %
DCI-P3 COLOR GAMUT
90.0 %
Matte
COATING
Matte
The AOC AG456UCZD (W-OLED) is best in class for casual gaming, while the Asus VG28UQL1A (IPS) is good.
Productivity
3.8
8.8
3440 x 1440
RESOLUTION
3840 x 2160
83 PPI
PIXELS PER INCH
157 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Asus VG28UQL1A (IPS) is very good for productivity, while the AOC AG456UCZD (W-OLED) is poor.
Media Consumption
5.9
7.0
3440 x 1440
RESOLUTION
3840 x 2160
Inf:1
NATIVE CONTRAST
1000:1
200 nits
SDR PEAK BRIGHTNESS
350 nits
Unknown
HDR PEAK BRIGHTNESS
350 nits
Matte
COATING
Matte
The Asus VG28UQL1A (IPS) is good for media consumption, while the AOC AG456UCZD (W-OLED) is poor.
Cost
$1,400
$611
$0
$500
$1,000
$1,500
$2,000
$2,500
The AOC AG456UCZD (W-OLED) has a price of $1,400 and the Asus VG28UQL1A (IPS) costs $611.
HDR Gaming and Media Consumption
Yes
No
The AOC AG456UCZD (W-OLED) is suitable for HDR gaming and media consumption while the Asus VG28UQL1A (IPS) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
No
The AOC AG456UCZD (W-OLED) is suitable for digital photo editing while the Asus VG28UQL1A (IPS) is not suitable for digital photo editing.
Key similarities
Competitive Gaming
6.0
6.1
240Hz
REFRESH RATE
144Hz
0.0 ms
TOTAL RESPONSE TIME
1.0 ms
48 - 240 Hz
VARIABLE REFRESH RATE
48 - 144 Hz
No
STROBING / BFI
No
200 nits
SDR PEAK BRIGHTNESS
350 nits
The Asus VG28UQL1A (IPS) and AOC AG456UCZD (W-OLED) are both only fair for competitive gaming.
HDR Video Editing and Color Grading
No
No
Both the AOC AG456UCZD (W-OLED) and Asus VG28UQL1A (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
Yes
Both the AOC AG456UCZD (W-OLED) and Asus VG28UQL1A (IPS) are suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the AOC AG456UCZD (W-OLED) and the Asus VG28UQL1A (IPS) compare to other monitors
Spec Comparison
 |  | |
| AOC AG456UCZD (W-OLED) | Asus VG28UQL1A (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,400 | $611 | ||
Screen Size | |||
Screen Size | 44.5" | 28" | |
Resolution | |||
Resolution | 3440 x 1440 | 3840 x 2160 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | W-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 240Hz | 144Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1000:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 200 nits | 350 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | 350 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 82 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.03 ms | 1 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 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 | 10/10 | 9.6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 83 PPI | 157 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 3.8/10 | 8/10 | |
Image Clarity Score | |||
Image Clarity Score | 4.9/10 | 8/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 0 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 1 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 3 | 1 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 0 | |
Shopping
Asus VG28UQL1A (IPS)
See more
Dig into reviews and images
PC World
Matthew Smith | March 2022
"The Asus TUF Gaming VG28UQL1A is, in many ways, a great 4K gaming monitor. It has a sharp, accurate image with good contrast and excellent motion clarity. Luminance uniformity is its only weakness. The monitor’s $799 MSRP is relatively affordable for a 4K HDMI 2.1 monitor, as well."
Give feedback
We're constantly perfecting our model
More comparisons for you
Compare AOC AG456UCZD (W-OLED) vs. ViewSonic XG341C-2K (VA Mini LED)
VS
Compare AOC AG456UCZD (W-OLED) vs. Asus PG34WCDM (W-OLED)
VS
Compare AOC AG456UCZD (W-OLED) vs. Samsung Odyssey OLED G8 G85SB (QD-OLED)
VS
Compare Asus VG28UQL1A (IPS) vs. LG 34WQ75C (IPS)
VS
Compare Asus VG28UQL1A (IPS) vs. LG 32GP850 (IPS)
VS
Compare Asus VG28UQL1A (IPS) vs. BenQ XL2566K (TN)
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
107,600
Recommendations made
16,140
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
