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What we think
The PerfectRec monitor team Learn more
Updated April 11, 2024·
If you're prioritizing an immersive gaming and media experience with deeper blacks and more vibrant colors, the Acer X34V with its curved, ultrawide screen and better contrast is a strong choice, especially for HDR content. However, it is significantly pricier and might not be as well-suited for productivity due to its aspect ratio and curve. On the other hand, if you're looking for a more budget-friendly option that's still great for gaming and general use, the Dell S2721DGF offers a traditional flat screen with good performance, which can be better for multitasking and productivity tasks. It's less suited for HDR gaming but still provides a solid experience for most users. 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 X34V (QD-OLED)
- Best in class for casual gaming
- Best in class for media consumption
- Best in class contrast
- Best in class color volume
- Best in class response time
Advantages of the Dell S2721DGF (IPS)
- Good text clarity
Key differences
Casual Gaming
9.6
5.9
3440 x 1440
RESOLUTION
2560 x 1440
175Hz
REFRESH RATE
165Hz
Inf:1
NATIVE CONTRAST
882:1
250 nits
SDR PEAK BRIGHTNESS
368 nits
1000 nits
HDR PEAK BRIGHTNESS
485 nits
99.0 %
DCI-P3 COLOR GAMUT
97.2 %
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for casual gaming, while the Dell S2721DGF (IPS) is poor.
Competitive Gaming
5.2
5.8
175Hz
REFRESH RATE
165Hz
1.0 ms
TOTAL RESPONSE TIME
6.3 ms
48 - 175 Hz
VARIABLE REFRESH RATE
20 - 165 Hz
No
STROBING / BFI
No
250 nits
SDR PEAK BRIGHTNESS
368 nits
The Dell S2721DGF (IPS) and Acer X34V (QD-OLED) are both poor for competitive gaming, though the Dell S2721DGF (IPS) is somewhat better.
Media Consumption
9.5
5.9
3440 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
882:1
250 nits
SDR PEAK BRIGHTNESS
368 nits
1000 nits
HDR PEAK BRIGHTNESS
485 nits
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for media consumption, while the Dell S2721DGF (IPS) is poor.
Cost
$700
$300
$0
$200
$400
$600
$800
$1,000
$1,200
The Acer X34V (QD-OLED) has a price of $700 and the Dell S2721DGF (IPS) costs $300.
HDR Gaming and Media Consumption
Yes
No
The Acer X34V (QD-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
3440 x 1440
RESOLUTION
2560 x 1440
109 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 Acer X34V (QD-OLED) is poor.
Digital Photo Editing
Yes
Yes
Both the Acer X34V (QD-OLED) and Dell S2721DGF (IPS) are suitable for digital photo editing.
HDR Video Editing and Color Grading
No
No
Both the Acer X34V (QD-OLED) and Dell S2721DGF (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X34V (QD-OLED) and Dell S2721DGF (IPS) are not suitable for print photo editing.
Give feedback
We’re constantly working to improve.
How the Acer X34V (QD-OLED) and the Dell S2721DGF (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer X34V (QD-OLED) | Dell S2721DGF (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$700 | $300 | ||
Screen Size | |||
Screen Size | 34" | 27" | |
Resolution | |||
Resolution | 3440 x 1440 | 2560 x 1440 | |
Screen Type | |||
Screen Type | OLED | LED | |
Screen Sub-type | |||
Screen Sub-type | QD-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 | 250 nits | 368 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1000 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 | 104 % | 137.7 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1 ms | 6.3 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 175 Hz | 20 - 165 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7.2/10 | 7.1/10 | |
Ghosting Score | |||
Ghosting Score | 9.6/10 | 8/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 109 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 | 1 | 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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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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Monitors evaluated
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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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