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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you are a competitive gamer looking for top performance with high refresh rates and very little ghosting, and if HDR gaming and media are important to you, the AOC AG276QZD with its OLED panel would be a great choice despite its higher price. However, the Dell S2721DGF, while less expensive, is still a solid choice for casual gaming and general productivity with a good balance of features. If budget is a concern and you're not prioritizing the pinnacle of gaming performance and HDR content, the Dell would serve you well. 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 AG276QZD (W-OLED)
- Best in class for casual gaming
- Best in class for competitive gaming
- Good for media consumption
- Very good refresh rate
- Best in class contrast
- Best in class response time
Advantages of the Dell S2721DGF (IPS)
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.7
5.9
2560 x 1440
RESOLUTION
2560 x 1440
240Hz
REFRESH RATE
165Hz
Inf:1
NATIVE CONTRAST
882:1
284 nits
SDR PEAK BRIGHTNESS
368 nits
379 nits
HDR PEAK BRIGHTNESS
485 nits
96.0 %
DCI-P3 COLOR GAMUT
97.2 %
Matte
COATING
Matte
The AOC AG276QZD (W-OLED) is best in class for casual gaming, while the Dell S2721DGF (IPS) is poor.
Competitive Gaming
9.6
5.8
240Hz
REFRESH RATE
165Hz
0.3 ms
TOTAL RESPONSE TIME
6.3 ms
20 - 240 Hz
VARIABLE REFRESH RATE
20 - 165 Hz
No
STROBING / BFI
No
284 nits
SDR PEAK BRIGHTNESS
368 nits
The AOC AG276QZD (W-OLED) is best in class for competitive gaming, while the Dell S2721DGF (IPS) is poor.
Media Consumption
7.8
5.9
2560 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
882:1
284 nits
SDR PEAK BRIGHTNESS
368 nits
379 nits
HDR PEAK BRIGHTNESS
485 nits
Matte
COATING
Matte
The AOC AG276QZD (W-OLED) is good for media consumption, while the Dell S2721DGF (IPS) is poor.
Cost
$700
$300
$0
$200
$400
$600
$800
$1,000
$1,200
The AOC AG276QZD (W-OLED) has a price of $700 and the Dell S2721DGF (IPS) costs $300.
HDR Gaming and Media Consumption
Yes
No
The AOC AG276QZD (W-OLED) is suitable for HDR gaming and media consumption while the Dell S2721DGF (IPS) is not suitable for HDR gaming and media consumption.
Key similarities
Productivity
5.7
6.2
2560 x 1440
RESOLUTION
2560 x 1440
108 PPI
PIXELS PER INCH
109 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
Although they have very similar scores, PerfectRec considers Dell S2721DGF (IPS) to be only fair for productivity, while the AOC AG276QZD (W-OLED) is poor.
Digital Photo Editing
Yes
Yes
Both the AOC AG276QZD (W-OLED) and Dell S2721DGF (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the AOC AG276QZD (W-OLED) and Dell S2721DGF (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the AOC AG276QZD (W-OLED) and Dell S2721DGF (IPS) are not suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the AOC AG276QZD (W-OLED) and the Dell S2721DGF (IPS) compare to other monitors
Spec Comparison
 |  | |
| AOC AG276QZD (W-OLED) | Dell S2721DGF (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$700 | $300 | ||
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 | |
Local Dimming Zones | |||
Local Dimming Zones | N/A | 8 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 882:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 284 nits | 368 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 379 nits | 485 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 100 % | 137.7 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.3 ms | 6.3 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 240 Hz | 20 - 165 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 7.1/10 | |
Ghosting Score | |||
Ghosting Score | 9.9/10 | 8/10 | |
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 | 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
Dell S2721DGF (IPS)
See more
Dig into reviews and images
Tom's Hardware
Christian Eberle | January 2021
"The Dell S2721DGF checks all the boxes for an upper-mid priced display that can take on the best gaming monitors, and you might even be able to find it for under $500 (it's $450-$500 as of writing). The monitor's 1440p, runs at 165 Hz without overclock, has AMD FreeSync Premium Pro and G-Sync Compatibility, covers a large portion of the DCI-P3 color gamut and includes a lighting effect on the back."
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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