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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you prioritize a large ultrawide screen for an immersive gaming and productivity experience, the Dell Alienware AW3821DW, with its broader display, might be the better option, though it comes with a higher price tag. However, if high refresh rates for smoother competitive gaming are more important to you and you are looking for value, the Dell S2721DGF offers a very good refresh rate and a higher pixels per inch count, which means sharper images, at a more affordable price but on a smaller screen. Neither monitor is particularly well-suited for HDR content due to their limited peak brightness and contrast. 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 Dell Alienware AW3821DW (IPS)
- Good brightness
Advantages of the Dell S2721DGF (IPS)
- Good refresh rate
- Very good response time
Key differences
Competitive Gaming
4.5
5.8
144Hz
REFRESH RATE
165Hz
10.8 ms
TOTAL RESPONSE TIME
6.3 ms
20 - 144 Hz
VARIABLE REFRESH RATE
20 - 165 Hz
No
STROBING / BFI
No
495 nits
SDR PEAK BRIGHTNESS
368 nits
The Dell S2721DGF (IPS) and Dell Alienware AW3821DW (IPS) are both poor for competitive gaming, though the Dell S2721DGF (IPS) is somewhat better.
Cost
$749
$300
$0
$200
$400
$600
$800
$1,000
$1,200
The Dell Alienware AW3821DW (IPS) has a price of $749 and the Dell S2721DGF (IPS) costs $300.
Key similarities
Casual Gaming
6.0
5.9
3840 x 1600
RESOLUTION
2560 x 1440
144Hz
REFRESH RATE
165Hz
883:1
NATIVE CONTRAST
882:1
495 nits
SDR PEAK BRIGHTNESS
368 nits
660 nits
HDR PEAK BRIGHTNESS
485 nits
95.6 %
DCI-P3 COLOR GAMUT
97.2 %
Matte
COATING
Matte
Although they have very similar scores, PerfectRec considers Dell Alienware AW3821DW (IPS) to be only fair for casual gaming, while the Dell S2721DGF (IPS) is poor.
Productivity
6.6
6.2
3840 x 1600
RESOLUTION
2560 x 1440
111 PPI
PIXELS PER INCH
109 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Matte
The Dell Alienware AW3821DW (IPS) and Dell S2721DGF (IPS) are both only fair for productivity.
Media Consumption
6.2
5.9
3840 x 1600
RESOLUTION
2560 x 1440
883:1
NATIVE CONTRAST
882:1
495 nits
SDR PEAK BRIGHTNESS
368 nits
660 nits
HDR PEAK BRIGHTNESS
485 nits
Matte
COATING
Matte
Although they have very similar scores, PerfectRec considers Dell Alienware AW3821DW (IPS) to be only fair for media consumption, while the Dell S2721DGF (IPS) is poor.
HDR Gaming and Media Consumption
No
No
Both the Dell Alienware AW3821DW (IPS) and Dell S2721DGF (IPS) are not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
Yes
Both the Dell Alienware AW3821DW (IPS) and Dell S2721DGF (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Dell Alienware AW3821DW (IPS) and Dell S2721DGF (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Dell Alienware AW3821DW (IPS) and Dell S2721DGF (IPS) are not suitable for print photo editing.
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We’re constantly working to improve.
How the Dell Alienware AW3821DW (IPS) and the Dell S2721DGF (IPS) compare to other monitors
Spec Comparison
 |  | |
| Dell Alienware AW3821DW (IPS) | Dell S2721DGF (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$749 | $300 | ||
Screen Size | |||
Screen Size | 38" | 27" | |
Resolution | |||
Resolution | 3840 x 1600 | 2560 x 1440 | |
Screen Type | |||
Screen Type | LED | LED | |
Screen Sub-type | |||
Screen Sub-type | IPS | IPS | |
Local Dimming Zones | |||
Local Dimming Zones | 32 | 8 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | 883:1 | 882:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 495 nits | 368 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 660 nits | 485 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | No | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 133 % | 137.7 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 10.8 ms | 6.3 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 20 - 144 Hz | 20 - 165 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 6.6/10 | 7.1/10 | |
Ghosting Score | |||
Ghosting Score | 7/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 111 PPI | 109 PPI | |
Coating | |||
Coating | Matte | Matte | |
Text Clarity Score | |||
Text Clarity Score | 7.2/10 | 7/10 | |
Image Clarity Score | |||
Image Clarity Score | 7.2/10 | 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 Alienware AW3821DW (IPS)
See more
Dig into reviews and images
Tom's Hardware
Christian Eberle | April 2021
"The Alienware AW3821DW isn’t perfect, but right now, it’s the best value in 38-inch ultrawide gaming monitors. It delivers a solid gaming experience with a bright and saturated image that’s color-accurate. With premium styling and build quality, it’s sure to satisfy gamers looking for a jumbo display."
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."
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We're constantly perfecting our model
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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
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Recommendations made
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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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