Optimising 240Hz and FreeSync Premium Settings on an UWQHD Display

Optimising UWQHD at 240Hz requires three stable layers: the operating system must select the correct mode, the game must deliver consistent frames, and FreeSync Premium must remain active across the intended range.

Quick Answer

Select 3440 x 1440 and 240Hz in Windows, enable FreeSync Premium in both monitor and graphics controls, and confirm the active signal. Then tune the game around sustainable frame times rather than an occasional 240fps peak. Use a cap where it improves pacing and select an overdrive mode that stays clean at both high and lower variable refresh.

Lock in the base display mode

Connect the PC directly while troubleshooting. Open advanced display settings, choose the Alienware AW3426DWM and select 240Hz. Confirm that the desktop remains at 3440 x 1440 rather than a lower scaled resolution.

Inspect the active signal through the display information menu or graphics panel. If 240Hz is missing, update the driver, remove docks or adapters and test a suitable known-good cable. Do not change game settings until the desktop path is correct.

Use the gaming monitor selection to compare high-refresh UWQHD configurations with other formats.

Enable adaptive refresh in both places

FreeSync Premium must be enabled where the display and graphics system expose the relevant controls. Restart the game after changing driver-level behaviour. Use a frame-rate overlay and a test whose output naturally varies; visible tearing should reduce when adaptive refresh is functioning inside its range.

Variable refresh cannot correct a slow asset load, shader compilation spike or processor stall. If the frame-time graph shows isolated large peaks, investigate the PC and game before blaming the sync path.

Choose a stable performance target

UWQHD renders almost five million pixels each frame. Begin with the native resolution, then reduce high-cost options such as ray tracing, volumetrics, reflections and shadow resolution. Preserve textures and interface clarity where their cost is manageable.

Record average frame rate, one-percent lows and GPU utilisation through the same route. A cap slightly below a repeatable ceiling can reduce heat and keep frame delivery even. Different games deserve different limits; a fast competitive title and a cinematic adventure need not share one profile.

Tune overdrive across the range

The AW3426DWM carries a 1ms GTG rating, but its VA transitions should be inspected in motion. Test bright tracking, dark panning and text scrolling. Increase overdrive only until trails are controlled; bright halos or coloured outlines signal overshoot.

Repeat at a lower frame rate with FreeSync active. Some aggressive modes are clean near 240Hz and less balanced around 100Hz. Select the setting that works across the rates used most often, not the one that wins a single maximum-refresh test.

Reduce latency methodically

Use the game's low-latency option where appropriate and avoid excessive render queueing. Keep the system in a consistent performance mode, close heavy background work and watch temperatures during a full session. Thermal throttling can turn a clean first benchmark into erratic later play.

Do not disable every synchronisation control blindly. Compare input feel and tearing with one change at a time. The goal is controlled response, not the smallest theoretical number attached to an unstable image.

Set up the 1500R viewing position

Centre the 34-inch screen, keep the outer edges within comfortable eye movement and avoid placing the seat far off-axis. The curved monitor category gives useful shape context.

At R8,999, the AW3426DWM also includes DisplayHDR 400, Dolby Vision and 95% DCI-P3. Keep an SDR gaming preset separate from HDR calibration so picture changes do not become confused with refresh troubleshooting. The OLED monitor range is a different panel reference; this screen uses VA.

Verify after updates

Graphics-driver and operating-system updates can reset refresh, HDR or colour settings. Save a short checklist containing resolution, hertz, adaptive-sync state, cap, overdrive and game profile. Recheck it after a major update.

Run a ten-minute test rather than accepting the desktop alone. Record the active mode and a working frame-time capture for later comparison.

Separate GPU-bound and CPU-bound tuning

Lower the game's render scale while repeating the same scene. If frame rate rises markedly, the graphics card has useful work to shed; retain native output and reduce expensive effects or enable a quality upscaler. If output barely moves, examine processor utilisation, simulation load and the engine's own limit before sacrificing image quality.

This distinction matters most near high refresh. The CPU must prepare every frame even when the graphics card renders it quickly. Crowded matches, large strategy battles and high object counts can create a ceiling that a lower resolution does not remove.

Control heat and background work

Run the profile for a full session while logging temperatures and clocks. A system can reach 240Hz-friendly output in a short benchmark, then slow as heat builds. Improve airflow, choose a sustainable power profile or set a sensible cap before accepting inconsistent results.

Pause downloads, browser video and unnecessary overlays during the baseline test. Add required streaming or voice tools back one at a time, measuring their frame-time cost so the final profile reflects the way the PC is actually used.

Keep one conservative profile for troubleshooting. Native resolution, moderate frame cap and neutral overdrive provide a reliable control when an experimental setting introduces instability.

Frequently Asked Questions

Should the cap always be 240fps?

No. Choose a level the game and PC can hold consistently while staying within the useful adaptive-refresh range.

Can FreeSync Premium remove all stutter?

No. It addresses refresh mismatch, while game, storage, CPU and shader stalls require separate fixes.

Why test overdrive at lower refresh?

Transition tuning can behave differently as refresh changes, so maximum-speed results may not represent variable play.

What is the native AW3426DWM resolution?

It is 3440 x 1440 across a 34-inch VA panel.