Side by side
Take the U2724DE for smoother motion and a Thunderbolt-centered desk. The U2723QE brings denser 4K text and more pixels at the same 27-inch size.
Before you buy
Against 163.2 for U2723QE, U2724DE works out to about 108.8 pixels per inch. At the same logical size a denser panel can draw finer text, but workspace is set by comfortable scaling.
Where this comes from
Pixels per inch = √(width² + height²) / diagonal. The inputs are 2560 × 1440 at 27 inches and 3840 × 2160 at 27 inches, and since diagonals are published nominal values the results are approximate.
The catch
The native panel is QHD at up to 120Hz. Only a compatible host and cable let the Thunderbolt upstream carry video/data and up to 90W. Since the separate USB-C upstream is data only, HDMI/DP hosts also need their own video cable and the correct USB Selection. Auto KVM requires PBP Off, Auto Select On and Auto Select for Thunderbolt Yes. As for the USB Switch shortcut, it is PBP-only.
The catch
The upstream USB-C connection lacks Thunderbolt.
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Smoother motion and a Thunderbolt-centered desk are the U2724DE's case. At the same 27-inch size, the U2723QE gives denser 4K text and more pixels.
Resolution traded against refresh, with no simple generation upgrade
Which one fits
At QHD, U2724DE reaches 120 Hz, and at 4K, U2723QE reaches 60 Hz. Choosing the higher refresh means fewer native pixels.
Against 2560 × 1440 for U2724DE, U2723QE provides 3840 × 2160 pixels at 27 inches. How that higher density appears is determined by text scaling.
Compared with U2723QE's 1 Gb Ethernet, U2724DE supplies Thunderbolt and 2.5 Gb Ethernet. The faster route has to be supported by the host, network and destination.
When the workflow does not call for the U2724DE's 120 Hz motion, U2723QE offers more native detail, pairing a 4K panel with a 60 Hz ceiling.
In practice
Against 163.2 for U2723QE, U2724DE works out to about 108.8 pixels per inch. At the same logical size a denser panel can draw finer text, but workspace is set by comfortable scaling.
Pixels per inch = √(width² + height²) / diagonal. The inputs are 2560 × 1440 at 27 inches and 3840 × 2160 at 27 inches, and since diagonals are published nominal values the results are approximate.
Each frame takes 3.7 million native pixels on U2724DE and 8.3 million on U2723QE. The refresh ceilings are 120Hz and 60Hz respectively.
Native pixels = width × height. Refresh interval =1000 / Hz, which gives 8.3 and 16.7 ms. These calculations concern signal and cadence and are not measured frame rates, input lag or pixel response.
U2724DE doubles refresh, but U2723QE renders 8.29 million pixels against 3.69 million.
3840 × 2160 / (2560 × 1440) = 2.25 and 120 / 60 = 2. Pixel load and refresh are separate matters.
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.
Dell, U2723QE
For a laptop that spends most days at a desk, the U2723QE offers a sharp 4K panel, Ethernet and a USB hub. If its 90-watt connection covers what your laptop needs, that matters more than a newer model number.
Spec by spec
| Spec | Dell UltraSharp 27 Thunderbolt Hub Monitor | Dell UltraSharp 27 4K USB-C Hub Monitor | In practice |
|---|---|---|---|
| Native resolution | 2560 × 1440 | 3840 × 2160 | Usable logical workspace changes with operating-system scaling. |
| Panel diagonal | 27 in | 27 in | The measured active diagonal may differ slightly from a nominal screen class. |
| Maximum refresh | 120Hz | 60Hz | Look at the exact input, resolution and overclock conditions. |
| Panel technology | IPS Black | IPS Black | A measured color or motion winner is not established by panel type alone. |
| Laptop power | Up to 90W | Up to 90W | For the desired delivery, the host, cable and negotiated power profile all have to support it. |
| Chassis width | Check exact drawing | Check exact drawing | Leave additional room for cables, arms and neighboring equipment. |
| Stand depth | Check exact drawing | Check exact drawing | More desk depth can be taken by the included stand than by the display cabinet. |
Trade-offs
Decision guide
The U2724DE suits smoother motion and a Thunderbolt-centered desk, and the U2723QE suits denser 4K text and more pixels at the same 27-inch size.
The U2724DE runs 2560 by 1440 at 120Hz, while the U2723QE runs 3840 by 2160 at 60Hz. A newer-looking name does not mean more pixels.
90W delivery is listed for each. That shared figure takes charging wattage off the table as a reason to choose one, though cable and host support still matter.
Ethernet is 2.5Gb on the U2724DE and 1Gb on the U2723QE. A faster port helps only when the network, host link and destination can exceed gigabit.
By the numbers
What we found across the computer monitors we compare, plus the checked facts behind each finding.
This guide keeps all 50 models in play. The pick rests on the facts and trade-offs on this page.
50 models fit, out of 50 checkedDell UltraSharp 27 Thunderbolt Hub Monitor lists 120 Hz for top refresh rate, 100% more than the 60 Hz on Dell UltraSharp 27 4K USB-C Hub Monitor.
How we countedNo needs are preselected here. Open the matcher and add the ones that apply to your home, room or setup.
How we calculatedFigures use the fastest published refresh mode. Resolution, connection and color settings decide when you get that rate. For context, 44 of 50 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Dell UltraSharp 27 Thunderbolt Hub Monitor | None of these needs is a documented match |
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| Dell UltraSharp 27 4K USB-C Hub Monitor | None of these needs is a documented match |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.
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