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 immersive gaming and media consumption and are willing to invest more, the Acer X34V, with its OLED display, offers superior contrast, color, and performance at high refresh rates, but it's significantly more expensive. On the other hand, if your focus is on everyday productivity and you're budget-conscious, the Dell S2721DS provides a good balance for casual use at a much lower cost, but it won't deliver the same high-quality gaming or media experience as the Acer. The Acer is curved and wider, enhancing gaming and movie-watching experiences, but the Dell is more conventionally sized and practical for standard office work. 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
- Good refresh rate
- Best in class contrast
- Best in class color volume
- Best in class response time
Advantages of the Dell S2721DS (IPS)
- Good text clarity
Key differences
Casual Gaming
9.6
5.8
3440 x 1440
RESOLUTION
2560 x 1440
175Hz
REFRESH RATE
75Hz
Inf:1
NATIVE CONTRAST
1015:1
250 nits
SDR PEAK BRIGHTNESS
334 nits
1000 nits
HDR PEAK BRIGHTNESS
N/A
99.0 %
DCI-P3 COLOR GAMUT
N/A
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for casual gaming, while the Dell S2721DS (IPS) is poor.
Media Consumption
9.5
5.9
3440 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
1015:1
250 nits
SDR PEAK BRIGHTNESS
334 nits
1000 nits
HDR PEAK BRIGHTNESS
N/A
Matte
COATING
Matte
The Acer X34V (QD-OLED) is best in class for media consumption, while the Dell S2721DS (IPS) is poor.
Cost
$700
$309
$0
$200
$400
$600
$800
$1,000
$1,200
The Acer X34V (QD-OLED) has a price of $700 and the Dell S2721DS (IPS) costs $309.
HDR Gaming and Media Consumption
Yes
No
The Acer X34V (QD-OLED) is suitable for HDR gaming and media consumption while the Dell S2721DS (IPS) is not suitable for HDR gaming and media consumption.
Digital Photo Editing
Yes
No
The Acer X34V (QD-OLED) is suitable for digital photo editing while the Dell S2721DS (IPS) is not suitable for digital photo editing.
Key similarities
Competitive Gaming
5.2
5.0
175Hz
REFRESH RATE
75Hz
1.0 ms
TOTAL RESPONSE TIME
17.4 ms
48 - 175 Hz
VARIABLE REFRESH RATE
48 - 75 Hz
No
STROBING / BFI
No
250 nits
SDR PEAK BRIGHTNESS
334 nits
The Acer X34V (QD-OLED) and Dell S2721DS (IPS) are both poor for competitive gaming.
Productivity
5.7
5.9
3440 x 1440
RESOLUTION
2560 x 1440
109 PPI
PIXELS PER INCH
109 PPI
Yes
ADJUSTABLE STAND
No
Matte
COATING
Matte
The Dell S2721DS (IPS) and Acer X34V (QD-OLED) are both poor for productivity.
HDR Video Editing and Color Grading
No
No
Both the Acer X34V (QD-OLED) and Dell S2721DS (IPS) are not suitable for HDR video editing and color grading.
Print Photo Editing
No
No
Both the Acer X34V (QD-OLED) and Dell S2721DS (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 S2721DS (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer X34V (QD-OLED) | Dell S2721DS (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$700 | $309 | ||
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 | |
Refresh Rate | |||
Refresh Rate | 175Hz | 75Hz | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1015:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 250 nits | 334 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | 1000 nits | N/A | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | 104 % | 98.6 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 1 ms | 17.4 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 175 Hz | 48 - 75 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 7.2/10 | 5.2/10 | |
Ghosting Score | |||
Ghosting Score | 9.6/10 | 6/10 | |
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 | 1 | |
HDMI 2.0 Ports | |||
HDMI 2.0 Ports | 1 | 0 | |
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 | 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 Acer X34V (QD-OLED) vs. AOC AG276QZD (W-OLED)
VS
Compare Acer X34V (QD-OLED) vs. Pixio PX277 OLED Max (W-OLED)
VS
Compare Acer X34V (QD-OLED) vs. Nubia RedMagic GM001J (IPS MiniLED)
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
116,600
Recommendations made
17,490
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
