Find a sharp HiDPI setup without sacrificing more refresh rate than necessary

Find a comfortable HiDPI desktop with the highest refresh rate that works reliably. Compare complete display modes to find the best available balance of desktop size, clarity and rate. Then check that your choice remains reliable after wake and reconnect.

Before you begin

Use a natively connected display through HDMI, DisplayPort or USB-C. Start with a working picture and a cable, adapter or dock suitable for the intended output. A DisplayLink desktop or a virtual screen uses a different presentation method. Its mode list does not tell you the physical monitor’s timing.

If you have not yet enabled the desktop sizes you need, follow Set up a fully scalable HiDPI desktop first and finish its Apply and activation steps. This tutorial compares the resulting modes. You do not need to add further model overrides.

Save your work and note the complete mode that currently gives you a working picture. Keep another usable Mac screen available when trying unfamiliar combinations. BetterDisplay applies mode changes directly, without an automatic confirmation countdown. Start with the current extended desktop rather than a mirror target.

Record a working baseline

  1. Open Settings > Displays > [display] > Display Information…. Note the current connection and whether HDR is on. Keep the other connected displays the same during the first comparison. You can use Export Display Information… to save a report. Review it before sharing because it can contain device identifiers.
  2. Under Current Display Mode, record Logical width, Logical height, HiDPI, Pixel width, Pixel height, Bits per sample and Refresh string. The logical dimensions describe desktop space. The pixel dimensions describe the larger image the Mac renders for that mode.
  3. When present, record Dimensions, Refresh Rate, Bit Depth and HDR/SDR Mode under Current Display Mode (Connection Level). These describe the physical output sent to the monitor. Missing rows mean the system did not supply that information.
  4. If you use App Menu > [display] > Configuration Protection, note the saved Resolution, Refresh Rate, HDR Status, Color Mode and HDR Color Mode protections before changing them. Their saved targets may differ from the current picture. Pause only those that interfere with the comparison. Turning a protection off clears its target, so keep your notes if you plan to restore it.
  5. If you use display groups, check Settings > Groups. UI scale matching can change other displays’ modes, and layout protection can move their desktop positions. Note your arrangement before pausing a feature that interferes with the comparison.

If a large desktop size is missing, Capabilities may show a Horizontal GPU resolution limit or Allocation limits - horizontal/Allocation limits - vertical. Link Information provides connection details. These optional sections can help you investigate a limit after the basic comparison.

For example, a 3008 × 1692 HiDPI desktop normally renders at 6016 × 3384, then scales to a 3840 × 2160 output on a 4K monitor. The cable carries the output image, but the Mac must also render the larger desktop. See how desktop, rendering and output resolutions differ.

Compare complete HiDPI modes

  1. Open App Menu > [display] > Display Mode, using the more-options chevron if needed, then select Filter…. The default filter follows the current rate, aspect ratio and bit depth, so a short list does not prove other combinations are absent.
  2. Select the HiDPI filter and a rate you want to compare, keeping the same aspect ratio and bit depth initially. Clicking a filter normally replaces other choices of the same type. Hold Option while clicking another rate tag to include both. Release Option before selecting a mode. Leave Show All off: it also reveals unsafe or invalid modes.
  3. Select a listed HiDPI mode at a comfortable desktop size and a known-working rate. The sparkle symbol marks HiDPI rows. Each row also shows its rate and bit depth. Select a mode, then wait for the picture and layout to settle. There is no Apply step. Reopen Display Information after the change to get a fresh report.
  4. Try the same logical size at another listed rate, then check HiDPI: Yes, backing pixels and connection timing again. If only a LoDPI variant exists at that rate, choosing identical width and height still changes the rendering method. A high rate elsewhere in the list does not mean every desktop size can use it.
  5. If the preferred combination is absent or unreliable, compare a slightly smaller HiDPI desktop at the desired rate, or keep the size and try a lower rate. Return to the last working complete mode between comparisons. Note the size, HiDPI state, rate, bit depth, HDR state and connection for each successful combination.

Studio Display XDR native HiDPI mode filter with 60 and 120 Hz selected

Filter HiDPI modes to 16:9 with both 60 and 120 Hz selected. The example rows use 16-bit framebuffer modes.

Compare HDR and the connection separately

  1. If ordinary HDR is available, compare the same working desktop with App Menu > [display] > Enable HDR Mode off and on. Reopen Display Mode and Display Information after each change. Check the rate again because enabling HDR can change it. Note Night Shift and True Tone first. The app can temporarily disable them when entering HDR. Restore the original state after this comparison.
  2. On Apple silicon, inspect App Menu > [display] > Color Mode if a rate or HDR choice differs. Its connection color mode, bit depth, encoding and chroma subsampling can affect the available choices. Keep the original color mode for the first comparison. A format that uses less bandwidth may also affect text or colors. Use ordinary SDR/HDR choices for this tutorial. Forced or mixed modes can cause blank or corrupted output. If your setup depends on them, establish a working ordinary mode before trying this comparison.
  3. If a dock is involved, return to the working baseline, then compare a suitable direct Mac-to-monitor connection with the same other displays connected. Record the modes offered and actual output again. Reconnect the original path afterward. If the direct connection offers more modes, investigate the dock, adapter and cables. The comparison helps identify where the available choices change.
  4. If connecting another display removes the desired rate, compare with that additional display temporarily disconnected, then reconnect it and repeat the check. Keep a usable recovery screen and any needed keyboard or power connection. Restore the original arrangement and compare in the setup you intend to use every day.

Link bandwidth limits the signal carried by the connection. Rendering and allocation limits constrain the desktop the Mac can produce. A better cable cannot remove a rendering limit. Display Stream Compression (DSC) can reduce transport bandwidth when supported and active, but its availability does not guarantee a larger HiDPI desktop. VESA describes DSC's transport role, and Apple explains cable, adapter and display-count limitations.

Try additional connection rates only if needed

This optional Apple-silicon path can sometimes keep a working HiDPI desktop at a rate the ordinary mode list does not expose. It does not create a missing desktop size, and an offered connection rate can still produce a blank, green or distorted picture. Keep the recovery screen and recorded return mode ready. Skip this option if you cannot restore a working picture.

  1. Select the desired HiDPI desktop at a working lower rate first, with ordinary HDR and color settings. Confirm that the size actually works before continuing.
  2. Open App Menu > [display] > Refresh Rate normally. If available, extra connection-level choices appear in a separate group with waveform icons. These choices appear only when alternatives are available for the current mode. If the submenu or extra group is absent, use the ordinary mode comparison above.
  3. Try one offered waveform-marked rate. Fractional values such as 119.88 Hz can differ from 120 Hz. Choose only a value offered by your connection. Reopen the report and check both the retained HiDPI desktop and Current Display Mode (Connection Level) > Refresh Rate. The ordinary desktop-mode rate can differ from the connection rate after this operation.
  4. If the picture, size or colors are wrong, return to the recorded complete mode and ordinary HDR/color settings from the recovery screen. If it works, complete the checks below before enabling protection. Another mode change may discard the extra rate.

Studio Display XDR with the 59.94 Hz waveform selected and the native persistence warning

Select the offered 59.94 Hz rate. The warning explains when Configuration Protection is needed to keep a rate after mode changes.

Check the result

  1. Reopen Display Information and confirm the intended logical size, HiDPI: Yes and backing dimensions. On connections exposing the data, verify the intended physical output dimensions, rate and HDR/SDR format too. Compare the monitor's own signal-information page if it has one.
  2. Read normal text and scroll a document at your usual viewing distance. Check for blur, incorrect colors, stretching, flicker or blackouts. A larger rendered desktop on the same panel is not guaranteed to look sharper than a mode with direct pixel mapping.
  3. Test with all the displays and the connection path you plan to keep. Then save work and test sleep/wake and a normal reconnect. Check that the same size, clarity and rate return after each event.

FlipAction Pro current connection-level mode information with actual output dimensions, refresh rate, bit depth and SDR status.

Check the connection separately from the HiDPI desktop: this display reports 2560 × 1600 at about 120 Hz, 10-bit limited-range YCbCr 4:2:2, and SDR.

For a timing cross-check, hold Option while opening Refresh Rate to show Measured refresh rate:, Reported actual refresh rate: and Reported nominal refresh rate:. Option also broadens the ordinary list. Use it here to inspect the readings. They describe software timing, not a physical panel measurement or the frame rate of a particular app.

Protect only the tested settings

Once the combination works, open Configuration Protection and enable only what you need: Resolution for desktop size/HiDPI, Refresh Rate for timing, and optionally HDR Status and the relevant Color Mode or HDR Color Mode. Check every saved value. Configuration Protection starts off and does not make an unsupported mode valid.

Later mode changes update existing resolution and refresh-rate protection targets. Connection color-mode changes can update existing SDR/HDR color targets. Retest after enabling protection, and remember that a later manual change can become the new protected choice. Do not use Enable All Protections simply to retain one rate.

Troubleshooting

The same dimensions become blurry at a higher rate

Check HiDPI and backing pixels, not dimensions alone. The higher-rate row may be LoDPI. Select the last working HiDPI mode, then try a smaller HiDPI desktop or lower rate. See HiDPI refresh-rate limits and resolutions available only in LoDPI.

HDR or the desired rate is missing

Check the filters first, then compare ordinary SDR and HDR at a smaller desktop or lower rate. Some desktop sizes, rates and HDR formats cannot be used together. See HDR and HiDPI mode limits. Forced HDR is a separate compatibility experiment, with its own risk of corrupted or blank output.

The rate changes when another display connects or after wake

Repeat the report comparison in the complete daily setup. Check your exact Mac model's MacBook Pro or Mac mini display-support combinations. Physical output specifications do not promise every scaled HiDPI desktop. If protection is active, inspect its saved rate and follow refresh-rate protection troubleshooting. Protection cannot restore a mode that the new connection no longer offers.

The report lacks connection data or other screens change

Connection-level modes require Apple silicon and a native physical display. On Intel, use ordinary mode information. Preferred Display Mode (Connection Level) describes a preferred mode, which may differ from the current output. If another screen's desktop size or position changed, review the recorded group scale-matching and layout settings before repeating the test.

Undo the comparisons and restore your setup

  1. From a usable screen, turn off only protections added for this experiment, and temporarily pause relevant pre-existing protections before restoring modes. Restore the recorded connection path, attached displays and display arrangement.
  2. Select the original complete Display Mode, including its HiDPI/LoDPI state and rate. Restore the original HDR state and, where applicable, original SDR and HDR color modes. Reopen Display Information to confirm the return. Check Night Shift and True Tone too if you tested HDR.
  3. Restore any protection you paused. To recreate its target, select the recorded working state, enable the corresponding protection and check the saved value. If the target differed from your original active mode, selecting it will change the picture. Keep the protection off if that target is no longer available.
  4. Restore group scale-matching or layout switches you paused, then check the arrangement. If you want the original filter choices, select them again. Reset Default resets only Display Mode’s filters. It does not restore the mode, HDR or protections.

If you separately enabled flexible scaling for this task, follow that tutorial's undo steps to restore only the changed model settings and complete Apply/activation. Do not remove unrelated overrides or reset all app preferences to undo a mode comparison.

Additional information

This section explains feature access and platform requirements for the comparisons above.

Features requiring Pro license

Flexible scaling, Configuration Protection, group UI scale matching/layout protection, and BetterDisplay's HDR switch require Pro or an active trial. Color Mode choices that change the HDR/SDR format also require Pro. Choosing existing ordinary modes and refresh rates, additional connection rates when available, filtering, Display Information and the refresh-rate reporter do not themselves require Pro.

Platform compatibility

Use BetterDisplay on macOS 26.3 or later. Ordinary mode/rate selection and reporting work on Apple silicon and Intel. Connection-level reporting, Color Mode and additional direct connection rates require Apple silicon, a connected native physical display and modes exposed by that connection. HDR and variable refresh depend on the display and connection. Compare the modes offered by your complete setup rather than assuming a universal maximum from the chip, port or monitor specifications.