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Dell S2725QS vs S2725DSM: Choose by Output Mode and Inputs

Choose the S2725QS if you specifically want a 27-inch 4K/120Hz display mode and need two HDMI inputs on the monitor. Choose the S2725DSM if QHD at its listed 144Hz mode fits your source and one HDMI plus one DisplayPort is enough. Neither monitor's published maximum proves that a particular PC, console, cable, game, or setting will deliver that mode.

Published by Pickoryx · Published 2026-10-01

Source checked 2026-10-01 02:43 UTC

Products compared

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The buying question

Should I choose the S2725QS's 4K/120Hz mode or the S2725DSM's QHD/144Hz mode, and do I need the QS's extra HDMI input?

The S2725QS lists a higher-resolution 4K mode at 120Hz and has two HDMI inputs; the S2725DSM lists QHD at 144Hz and has one HDMI input. The correct fit depends on the source's supported mode and the buyer's actual input mix.

Quick verdict

Choose Dell 27 Plus 4K Monitor (S2725QS, T4CNF) if

  • You want the monitor's listed 3840 x 2160 at 120Hz mode, and your source and chosen connection support the output you plan to use.
  • You need two HDMI sources connected directly to this one display; the S2725QS lists two HDMI inputs plus DisplayPort.
View Dell 27 Plus 4K Monitor (S2725QS, T4CNF) on AmazonPaid link

Choose Dell 27 Plus QHD Monitor (S2725DSM, GTT45) if

  • You prefer the S2725DSM's listed 2560 x 1440 at 144Hz mode and have checked that your source supports it.
  • Your setup needs one HDMI source and one DisplayPort source, which matches the S2725DSM's listed input mix.
View Dell 27 Plus QHD Monitor (S2725DSM, GTT45) on AmazonPaid link
When the recommendation changes
  • Your source device's specifications or display settings do not support the mode and refresh rate you intend to use.
  • Your source connections change: a second HDMI device makes the QS input layout more useful, while an HDMI-plus-DisplayPort setup fits either monitor's listed input mix.

The differences that matter

Output Mode And Source Fit

Dell 27 Plus 4K Monitor (S2725QS, T4CNF)

27-inch IPS; maximum listed mode 3840 x 2160 at 120Hz; 163 PPI.[1]

Dell 27 Plus QHD Monitor (S2725DSM, GTT45)

27-inch IPS; maximum listed mode 2560 x 1440 at 144Hz; 109 PPI.[2]

What this changes: This is a choice between the S2725QS's higher-pixel-density 4K mode and the S2725DSM's higher listed refresh rate at QHD. A monitor specification alone does not establish which mode a buyer's computer can output or how a game will perform; check the source, connection, and intended application before choosing.[1, 2]

The better fit depends on your priorities

Source Input Topology

Dell 27 Plus 4K Monitor (S2725QS, T4CNF)

Two HDMI inputs and one DisplayPort 1.4 input.[1]

Dell 27 Plus QHD Monitor (S2725DSM, GTT45)

One HDMI input and one DisplayPort 1.4 input.[2]

What this changes: The QS can keep two HDMI sources plugged into the monitor at once; the DSM lists one HDMI input, so a second HDMI-only source would need a separate connection solution. These port counts do not establish automatic switching, simultaneous display, or multi-monitor GPU capacity.[1, 2]

The better fit depends on your priorities

Best for your routine

A buyer has confirmed that their source supports 3840 x 2160 at 120Hz over the planned connection and wants that display mode.

Best fit: Dell 27 Plus 4K Monitor (S2725QS, T4CNF)

Based on listed features, not comparative testing.

The S2725QS is the only one of these two with a manufacturer-listed 3840 x 2160 at 120Hz mode; this is a feature-fit conclusion, not a promise that a particular source will reach it.

View Dell 27 Plus 4K Monitor (S2725QS, T4CNF) on AmazonPaid link

A buyer has confirmed that their source supports QHD at 144Hz and wants the higher listed refresh-rate mode of these two.

Best fit: Dell 27 Plus QHD Monitor (S2725DSM, GTT45)

Based on listed features, not comparative testing.

The S2725DSM is listed for 2560 x 1440 at 144Hz; this identifies its supported monitor mode and does not predict perceived smoothness or game performance.

View Dell 27 Plus QHD Monitor (S2725DSM, GTT45) on AmazonPaid link

A buyer needs two HDMI devices plugged directly into one display.

Best fit: Dell 27 Plus 4K Monitor (S2725QS, T4CNF)

Based on listed features, not comparative testing.

The S2725QS lists two HDMI inputs, compared with one on the S2725DSM. The specifications do not describe automatic input switching.

View Dell 27 Plus 4K Monitor (S2725QS, T4CNF) on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

No fixed price premium is assumed here. Compare current offers only after confirming the exact model and that its output mode and inputs fit your setup.

There isn’t enough price history here to tell whether now is a good time to buy. Check the current offers for the exact models.

Limitations

  • Pickoryx did not conduct hands-on display, compatibility, refresh-rate, color, or gaming tests. The listed maximum mode is a monitor specification, not a result for a buyer's computer or console.
  • Check your source device's supported resolution and refresh rate for the exact HDMI or DisplayPort connection and the settings you plan to use; this comparison does not establish output compatibility for an unspecified system.
  • Dell lists 99% sRGB for both models, but those listings do not establish color calibration, measured accuracy, or which screen looks better.

Questions shoppers ask

Will my PC run either monitor at its full listed resolution and refresh rate?

The monitor pages list the maximum modes, but that alone cannot answer for an unspecified PC. Check the graphics device, output port, cable, operating-system display setting, and the application's settings against the mode you want before buying.

Can I connect two HDMI devices to the S2725DSM?

Dell lists one HDMI input on the S2725DSM and two on the S2725QS. If both devices must stay directly connected to the monitor, the QS has the matching port count; the published port list does not say how automatic input switching works.

Methodology and sources

Compared Dell's listed maximum resolution and refresh mode, pixel density, and monitor input counts for the exact S2725QS/T4CNF and S2725DSM/GTT45 models. No source-device compatibility or measured display-performance test was conducted.

Automation organized the model specifications and input counts; recommendations are limited to conditional feature fit. Pickoryx did not test these displays.

View 2 sources
  1. 1.Dell 27 Plus 4K Monitor - S2725QSDell USA · Official specifications · Source checked 2026-10-01 02:43 UTC
    Evidence used on this page
    • Product summary and manufacturer part at lines 90-144; maximum resolution, refresh rate, PPI, and color gamut at lines 410-444; interface counts and supported modes at lines 464-497.: Dell identifies S2725QS and manufacturer part T4CNF; lists 27-inch IPS, 3840 x 2160 at 120Hz, 163 PPI, two HDMI ports and one DisplayPort 1.4. The published mode and port counts support feature-fit claims only, not a source-device performance result.
  2. 2.Dell 27 Plus QHD Monitor - S2725DSMDell USA · Official specifications · Source checked 2026-10-01 02:43 UTC
    Evidence used on this page
    • Product summary and manufacturer part at lines 90-146; maximum resolution, refresh rate, PPI, and color gamut at lines 406-441; interface counts and listed support at lines 465-509.: Dell identifies S2725DSM and manufacturer part GTT45; lists 27-inch IPS, 2560 x 1440 at 144Hz, 109 PPI, one HDMI input and one DisplayPort 1.4. The published mode and port counts support feature-fit claims only, not a source-device performance result.

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