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 outstanding image quality for HDR media, the AOC PD49 with its wider color gamut and higher contrast would be a great fit; however, it’s significantly more costly. The Dell S2721DS, on the other hand, offers good text clarity and is more budget-friendly, but won't provide the same level of gaming performance or color accuracy, making it less suitable for competitive gaming or professional image editing. Choose the AOC for top-tier gaming and visual work or the Dell for everyday tasks and casual use at a lower cost. 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 PD49 (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Very good refresh rate
- Best in class contrast
- Best in class brightness
- Best in class color volume
- Best in class response time
Advantages of the Dell S2721DS (IPS)
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.9
5.8
5120 x 1440
RESOLUTION
2560 x 1440
240Hz
REFRESH RATE
75Hz
Inf:1
NATIVE CONTRAST
1015:1
1000 nits
SDR PEAK BRIGHTNESS
334 nits
Unknown
HDR PEAK BRIGHTNESS
N/A
99.0 %
DCI-P3 COLOR GAMUT
N/A
Matte
COATING
Matte
The AOC PD49 (QD-OLED) is best in class for casual gaming, while the Dell S2721DS (IPS) is poor.
Competitive Gaming
6.7
5.0
240Hz
REFRESH RATE
75Hz
0.0 ms
TOTAL RESPONSE TIME
17.4 ms
48 - 240 Hz
VARIABLE REFRESH RATE
48 - 75 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
334 nits
The AOC PD49 (QD-OLED) is only fair for competitive gaming, while the Dell S2721DS (IPS) is poor.
Media Consumption
9.8
5.9
5120 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
1015:1
1000 nits
SDR PEAK BRIGHTNESS
334 nits
Unknown
HDR PEAK BRIGHTNESS
N/A
Matte
COATING
Matte
The AOC PD49 (QD-OLED) is best in class for media consumption, while the Dell S2721DS (IPS) is poor.
Cost
$2,350
$309
$0
$1,000
$2,000
$3,000
$4,000
The AOC PD49 (QD-OLED) has a price of $2,350 and the Dell S2721DS (IPS) costs $309.
HDR Gaming and Media Consumption
Yes
No
The AOC PD49 (QD-OLED) is suitable for HDR gaming and media consumption while the Dell S2721DS (IPS) is not suitable for HDR gaming and media consumption.
HDR Video Editing and Color Grading
Yes
No
The AOC PD49 (QD-OLED) is suitable for HDR video editing and color grading while the Dell S2721DS (IPS) is not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
No
The AOC PD49 (QD-OLED) is suitable for print photo editing while the Dell S2721DS (IPS) is not suitable for print photo editing.
Key similarities
Productivity
5.9
5.9
5120 x 1440
RESOLUTION
2560 x 1440
108 PPI
PIXELS PER INCH
109 PPI
No
ADJUSTABLE STAND
No
Matte
COATING
Matte
The Dell S2721DS (IPS) and AOC PD49 (QD-OLED) are both poor for productivity.
Digital Photo Editing
No
No
Both the AOC PD49 (QD-OLED) and Dell S2721DS (IPS) are not suitable for digital photo editing.
Give feedback
We’re constantly working to improve.
How the AOC PD49 (QD-OLED) and the Dell S2721DS (IPS) compare to other monitors
Spec Comparison
 |  | |
| AOC PD49 (QD-OLED) | Dell S2721DS (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,350 | $309 | ||
Screen Size | |||
Screen Size | 49" | 27" | |
Resolution | |||
Resolution | 5120 x 1440 | 2560 x 1440 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | QD-OLED | IPS | |
Refresh Rate | |||
Refresh Rate | 240Hz | 75Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1015:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 1000 nits | 334 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | N/A | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 99 % | 98.6 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.03 ms | 17.4 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 240 Hz | 48 - 75 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 5.2/10 | |
Ghosting Score | |||
Ghosting Score | 10/10 | 6/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 108 PPI | 109 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 6.6/10 | 7/10 | |
Image Clarity Score | |||
Image Clarity Score | 7/10 | 7/10 | |
PORTS & CONNECTIVITY | |||
|---|---|---|---|
HDMI 1.4 Ports | |||
HDMI 1.4 Ports | 0 | 1 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 0 | 0 | |
HDMI 2.1 Ports | |||
HDMI 2.1 Ports | 2 | 0 | |
Micro HDMI Ports | |||
Micro HDMI Ports | 0 | 0 | |
DisplayPort 1.2 Ports | |||
DisplayPort 1.2 Ports | 0 | 1 | |
Shopping
Dell S2721DS (IPS)
See more
Dig into reviews and images
Tech Radar
Ural Garrett | November 2021
"General users or casual PC gamers in need of a solid and affordable QHD monitor with a few extras may walk away satisfied with the Dell S2721D."
Give feedback
We're constantly perfecting our model
More comparisons for you
Compare AOC PD49 (QD-OLED) vs. ViewSonic XG321UG (IPS Mini LED)
VS
Compare AOC PD49 (QD-OLED) vs. Asus PA27DCE (W-OLED)
VS
Compare AOC PD49 (QD-OLED) vs. LG 27EQ850 (W-OLED)
VS
Compare Dell S2721DS (IPS) vs. Dell S2522HG (IPS)
VS
Compare Dell S2721DS (IPS) vs. Dell S2721DGF (IPS)
VS
Compare Dell S2721DS (IPS) vs. Dell S2722DGM (VA)
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
116,900
Recommendations made
17,535
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
