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What we think
The PerfectRec monitor team Learn more
Updated April 22, 2024·
If you prioritize an expansive, high-quality display for immersive gaming and media with excellent contrast and are willing to invest more, the Acer Predator X45's OLED panel is a top-notch choice. However, for a balance between price, performance, and versatility, the Dell Alienware AW2721D provides a solid all-around experience at a lower cost. The Dell's performance in color-sensitive tasks isn't on par with the Acer, but it still offers a great gaming experience with its higher pixel density and vibrant display, making it well-suited for both competitive gaming and productivity. Choose the Acer if HDR gaming and media consumption are a priority, and the Dell for a more cost-effective yet capable gaming and productivity monitor. 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 Predator X45 (W-OLED)
- Best in class for casual gaming
- Good for media consumption
- Best in class contrast
- Best in class brightness
- Best in class response time
Advantages of the Dell Alienware AW2721D (IPS)
- Very good for competitive gaming
- Good text clarity
- Good image clarity
Key differences
Casual Gaming
9.8
6.5
3440 x 1440
RESOLUTION
2560 x 1440
240Hz
REFRESH RATE
240Hz
Inf:1
NATIVE CONTRAST
1088:1
1000 nits
SDR PEAK BRIGHTNESS
474 nits
Unknown
HDR PEAK BRIGHTNESS
788 nits
98.5 %
DCI-P3 COLOR GAMUT
71.9 %
Matte
COATING
Semi-Gloss
The Acer Predator X45 (W-OLED) is best in class for casual gaming, while the Dell Alienware AW2721D (IPS) is only fair.
Competitive Gaming
6.4
8.0
240Hz
REFRESH RATE
240Hz
0.0 ms
TOTAL RESPONSE TIME
7.1 ms
48 - 240 Hz
VARIABLE REFRESH RATE
20 - 240 Hz
No
STROBING / BFI
No
1000 nits
SDR PEAK BRIGHTNESS
474 nits
The Dell Alienware AW2721D (IPS) is very good for competitive gaming, while the Acer Predator X45 (W-OLED) is only fair.
Productivity
4.0
6.5
3440 x 1440
RESOLUTION
2560 x 1440
83 PPI
PIXELS PER INCH
109 PPI
Yes
ADJUSTABLE STAND
Yes
Matte
COATING
Semi-Gloss
The Dell Alienware AW2721D (IPS) is only fair for productivity, while the Acer Predator X45 (W-OLED) is poor.
Media Consumption
7.1
6.2
3440 x 1440
RESOLUTION
2560 x 1440
Inf:1
NATIVE CONTRAST
1088:1
1000 nits
SDR PEAK BRIGHTNESS
474 nits
Unknown
HDR PEAK BRIGHTNESS
788 nits
Matte
COATING
Semi-Gloss
The Acer Predator X45 (W-OLED) is good for media consumption, while the Dell Alienware AW2721D (IPS) is only fair.
Cost
$1,200
$902
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
$1,800
The Acer Predator X45 (W-OLED) has a price of $1,200 and the Dell Alienware AW2721D (IPS) costs $902.
HDR Gaming and Media Consumption
Yes
No
The Acer Predator X45 (W-OLED) is suitable for HDR gaming and media consumption while the Dell Alienware AW2721D (IPS) is not suitable for HDR gaming and media consumption.
HDR Video Editing and Color Grading
Yes
No
The Acer Predator X45 (W-OLED) is suitable for HDR video editing and color grading while the Dell Alienware AW2721D (IPS) is not suitable for HDR video editing and color grading.
Print Photo Editing
Yes
No
The Acer Predator X45 (W-OLED) is suitable for print photo editing while the Dell Alienware AW2721D (IPS) is not suitable for print photo editing.
Key similarities
Digital Photo Editing
Yes
Yes
Both the Acer Predator X45 (W-OLED) and Dell Alienware AW2721D (IPS) are suitable for digital photo editing.
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We’re constantly working to improve.
How the Acer Predator X45 (W-OLED) and the Dell Alienware AW2721D (IPS) compare to other monitors
Spec Comparison
 |  | |
| Acer Predator X45 (W-OLED) | Dell Alienware AW2721D (IPS) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,200 | $902 | ||
Screen Size | |||
Screen Size | 45" | 27" | |
Resolution | |||
Resolution | 3440 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 | 32 | |
COLOR, CONTRAST & BRIGHTNESS | |||
|---|---|---|---|
Native Contrast | |||
Native Contrast | Inf:1 | 1088:1 | |
SDR Peak Brightness | |||
SDR Peak Brightness | 1000 nits | 474 nits | |
HDR Peak Brightness | |||
HDR Peak Brightness | Unknown | 788 nits | |
Suitable for HDR Gaming and Media Consumption | |||
Suitable for HDR Gaming and Media Consumption | Yes | No | |
sRGB Color Gamut | |||
sRGB Color Gamut | Unknown | 136.9 % | |
MOTION CHARACTERISTICS | |||
|---|---|---|---|
Total Response Time | |||
Total Response Time | 0.01 ms | 7.1 ms | |
Variable Refresh Rate | |||
Variable Refresh Rate | 48 - 240 Hz | 20 - 240 Hz | |
Strobing / BFI | |||
Strobing / BFI | No | No | |
Persistence Blur Score | |||
Persistence Blur Score | 8/10 | 8/10 | |
Ghosting Score | |||
Ghosting Score | 10/10 | 7.9/10 | |
TEXT & IMAGE CLARITY | |||
|---|---|---|---|
Pixels Per Inch | |||
Pixels Per Inch | 83 PPI | 109 PPI | |
Coating | |||
Coating | Matte | Semi-Gloss | |
Text Clarity Score | |||
Text Clarity Score | 3.8/10 | 7/10 | |
Image Clarity Score | |||
Image Clarity Score | 4.9/10 | 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 AW2721D (IPS)
See more
Dig into reviews and images
PC Mag
Chris Stobing | July 2021
"If cost isn't an issue and you want a gaming monitor that will give your content all-new life for years to come, the Alienware 27 Gaming Monitor defines the upper echelon of what gaming monitors do best today. This display does everything the HP Omen X 27 tried to do, but does it a whole lot better for just a slight bump in price. If you're choosing between the two, the Alienware is the clear winner, and that story repeats itself again and again no matter which 1440p contender we put the Alienware 27 up against."
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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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