Main trade-off
BenQ RD Series 28-inch Programming Monitor
The 3:2 shape is taller than widescreen video, so most films will have unused space above and below.
Head-to-head
Choose RD280U for a taller, denser coding canvas. U2724DE suits a Thunderbolt desk where smooth 120Hz motion and wired networking are priorities.
Before you choose
RD280U works out to about 163.7 pixels per inch, versus 108.8 for U2724DE. A denser panel can draw finer text at the same logical size, while comfortable scaling determines workspace.
What this is based on
Pixels per inch = √(width² + height²) / diagonal. Inputs are 3840 × 2560 at 28.2 inches and 2560 × 1440 at 27 inches. Published nominal diagonals make these approximate.
Main trade-off
The 3:2 shape is taller than widescreen video, so most films will have unused space above and below.
Main trade-off
The native panel is QHD up to 120Hz. Thunderbolt upstream carries video/data and up to 90W only with a compatible host and cable. The separate USB-C upstream is data only, so HDMI/DP hosts also need their video cable and correct USB Selection. Auto KVM requires PBP Off, Auto Select On and Auto Select for Thunderbolt Yes. The USB Switch shortcut is PBP-only.


Choose RD280U for a taller, denser coding canvas. U2724DE suits a Thunderbolt desk where smooth 120Hz motion and wired networking are priorities.
The taller format changes what fits vertically
Winner by situation
RD280U provides 2560 vertical pixels against U2724DE at 1440. Its taller 3:2 layout is the relevant difference for long documents.
U2724DE provides the Thunderbolt-centered hub and wired-networking arrangement. Both models list 90 W charging, so that shared power ceiling does not decide the connection workflow.
RD280U uses 3840 × 2560 pixels in a 28.2-inch 3:2 panel. U2724DE is a 27-inch 2560 × 1440 widescreen display.
U2724DE reaches 120 Hz, twice RD280U's 60 Hz limit. Check the host connection supports that mode.
What matters in practice
RD280U works out to about 163.7 pixels per inch, versus 108.8 for U2724DE. A denser panel can draw finer text at the same logical size, while comfortable scaling determines workspace.
Pixels per inch = √(width² + height²) / diagonal. Inputs are 3840 × 2560 at 28.2 inches and 2560 × 1440 at 27 inches. Published nominal diagonals make these approximate.
RD280U draws 9.8 million native pixels per frame and U2724DE 3.7 million. Their refresh ceilings are 60Hz and 120Hz respectively.
Native pixels = width × height. Refresh interval =1000 / Hz, giving 16.7 and 8.3 ms. These are signal and cadence calculations, not measured frame rates, input lag or pixel response.
RD280U supplies 2560 rows versus U2724DE at 1440, while both list 90W charging.
(2560 / 1440 - 1) × 100 = 77.8%. This is pixel count, not a promise of 78% more readable code after scaling.

BenQ, RD280U
A 3:2 screen offers a tall layout for code and documents, with usable space depending on app layout and scaling. USB-C and correctly connected KVM can serve a laptop and desktop.

Dell, U2724DE
Dell U2724DE is a 27-inch native QHD monitor up to 120Hz. A verified Thunderbolt host can use video, data and up to 90W through its proper upstream. Separate USB-C upstream is data only. RJ45 needs upstream data, driver and Ethernet cable, with DP Alt High Resolution limiting USB data to 480 Mbps.
Meaningful differences
| What changes | BenQ RD Series 28-inch Programming Monitor | Dell UltraSharp 27 Thunderbolt Hub Monitor | Why it matters |
|---|---|---|---|
| Native resolution | 3840 × 2560 | 2560 × 1440 | Operating-system scaling changes usable logical workspace. |
| Panel diagonal | 28.2 in | 27 in | A nominal screen class may differ slightly from the measured active diagonal. |
| Maximum refresh | 60Hz | 120Hz | Check the exact input, resolution and overclock conditions. |
| Panel technology | IPS | IPS Black | Panel type alone does not establish a measured color or motion winner. |
| Laptop power | Up to 90W | Up to 90W | Host, cable and negotiated power profile must support the desired delivery. |
| Chassis width | 610.4 mm | Check exact drawing | Allow additional room for cables, arms and neighboring equipment. |
| Stand depth | 244.5 mm | Check exact drawing | The included stand can take more desk depth than the display cabinet. |
What you give up
What matters in practice
BenQ has 2560 pixel rows against Dell at 1440. Comfortable text scaling determines the real code-line gain, but the native vertical headroom is substantial.
Each lists up to 90W. Check the laptop power requirement, especially under sustained load, before assuming its original charger can stay in the bag.
U2724DE refreshes at 120Hz, twice BenQ 60Hz. That can make cursor and scrolling movement smoother without improving the number of pixels available for text.
What the facts say
Useful conclusions from the current computer monitors comparison, followed by the checked facts used to reach them.
All 50 models remain in view on this guide. The answer comes from the facts and trade-offs shown on the page.
50 matching models from 50 checkedDell UltraSharp 27 Thunderbolt Hub Monitor lists 120 Hz for maximum refresh rate, 100% above BenQ RD Series 28-inch Programming Monitor at 60 Hz.
Match countNo matcher need is preselected here. Open the matcher to add the needs that apply to your home, room or setup.
Calculation noteThis uses the highest published refresh mode. Resolution, connection and color settings can limit when that rate is available. 44 of 50 models have comparable published figures for context.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BenQ RD Series 28-inch Programming Monitor | No positive match recorded for these needs |
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| Dell UltraSharp 27 Thunderbolt Hub Monitor | No positive match recorded for these needs |
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