The catch
Dell UltraSharp 27 Thunderbolt Hub Monitor
QHD, and not 4K, is its native resolution.
Side by side
QHD at 120Hz, Thunderbolt 4 and integrated 2.5GbE are the U2724DE's draw. A denser 4K image and built-in speakers at 60Hz are the MA270U's. Up to 90W of laptop power delivery is advertised for both.
Before you buy
Someone who prefers higher-density rendering benefits from that, but it does not automatically provide 2.25 times the usable workspace after operating-system scaling.
Where this comes from
(3840 × 2160) / (2560 × 1440) = 2.25. Each is specified as a 27-inch, 16:9 monitor.
The catch
QHD, and not 4K, is its native resolution.
The catch
Refresh is capped at 60Hz.


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On a 27-inch laptop desk, U2724DE and MA270U split between QHD at 120Hz with network docking and 4K at 60Hz with built-in speakers.
QHD at 120Hz, Thunderbolt 4 and integrated 2.5GbE are the U2724DE's draw. A denser 4K image and built-in speakers at 60Hz are the MA270U's. Up to 90W of laptop power delivery is advertised for both.
Which one fits
Thunderbolt 4 and 2.5GbE come together on Dell. BenQ has USB-C video and no listed RJ45 connection.
MA270U runs native 3840 × 2160, while U2724DE runs native QHD.
In its native QHD mode, Dell reaches 120Hz. BenQ's 4K maximum is 60Hz.
Speakers are included with BenQ, but Dell requires another audio device.
In practice
Someone who prefers higher-density rendering benefits from that, but it does not automatically provide 2.25 times the usable workspace after operating-system scaling.
(3840 × 2160) / (2560 × 1440) = 2.25. Each is specified as a 27-inch, 16:9 monitor.
On Dell a source can target QHD at 120Hz, and on BenQ it can target 4K at 60Hz. What this comes down to is detail versus refresh and not a single speed ranking.
Dell: 2560 × 1440 at 120Hz. BenQ: 3840 × 2160 at 60Hz. Refresh is 120 / 60 = 2, while native pixels differ by 2.25 times.
Up to 90W to the laptop is advertised by both. A requirement for a guaranteed 100W monitor output falls outside both specifications, whatever the resolution or Thunderbolt.
90W = 90W. Each ceiling is exceeded by 10W by a 100W output requirement. Actual negotiated power can be lower.

Dell, U2724DE
The Dell U2724DE is a 27-inch native QHD monitor that runs up to 120Hz. A verified Thunderbolt host gets video, data and up to 90W through the proper upstream port, while the separate USB-C upstream carries data only. To use RJ45 you need upstream data, the driver and an Ethernet cable, and DP Alt High Resolution limits USB data to 480 Mbps.

BenQ, MA270U
Built around MacBook use, this matte 4K screen tailors its controls and color modes to it. It has one 90W USB-C video input and a separate downstream USB-C accessory port.
Spec by spec
| Spec | Dell UltraSharp 27 Thunderbolt Hub Monitor | BenQ MA Series 27-inch 4K Monitor for MacBook | In practice |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 3840 × 2160 | In the same 27-inch screen class, BenQ has more addressable pixels. Usable workspace and text size are controlled by OS scaling. |
| Maximum native refresh rate | 120Hz | 60Hz | The higher refresh ceiling is on Dell. Neither specification is a measured response-time result. |
| Laptop video connection | Thunderbolt 4 | USB-C DisplayPort Alt Mode | Different capabilities are involved in Thunderbolt and ordinary USB-C video. Confirm what the laptop supplies. |
| Integrated Ethernet | 2.5GbE RJ45 | No Ethernet port in the listed connections | The monitor's network-dock role can be taken by Dell. For wired networking, BenQ needs an extra adapter. |
| Built-in speakers | None | Two 3W speakers | Basic sound comes from BenQ with no additional speaker. Dell needs an external audio device. |
| Stand height adjustment | 150mm | 115mm | Vertical travel is 35mm more on Dell. Measure the actual seated eye position and desk height. |
Trade-offs
Change of plan
Go with BenQ MA Series 27-inch 4K Monitor for MacBook. Up to 60Hz at 3840 × 2160 is what MA270U supplies.
Go with Dell UltraSharp 27 Thunderbolt Hub Monitor. U2724DE brings 2.5GbE along with QHD at up to 120Hz.
Neither model fits. BenQ's 4K refresh ceiling is 60Hz, and Dell is QHD.
Decision guide
The U2724DE is for QHD at 120Hz, Thunderbolt 4 and integrated 2.5GbE. The MA270U is for a denser 4K image and built-in speakers at 60Hz. Both advertise up to 90W laptop power delivery.
More native pixels come from the BenQ panel and a higher refresh ceiling from the Dell. Try the operating system's scaling choices with the applications you use. Neither pixel count nor a refresh specification proves measured sharpness, motion clarity or comfort.
Thunderbolt, RJ45 and multiple downstream connections come with the U2724DE, and they can replace specific external connections on a laptop desk. BenQ's built-in audio addresses a different need. Before deciding which extra hardware is required, list the devices that must stay plugged in.
A 90W maximum for laptop power delivery is specified for both. What gets used is negotiated by the actual computer and cable. If a workload needs more, verify the laptop's external-charger behavior and don't treat Thunderbolt as a promise of more power.
By the numbers
What we found across the computer monitors we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Dell UltraSharp 27 Thunderbolt Hub Monitor |
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| BenQ MA Series 27-inch 4K Monitor for MacBook |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Run Thunderbolt and wired Ethernet via the monitor
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