Your graphics card can drive QHD at 240Hz only when the game, settings and CPU deliver close to 240 fps. Benchmark 2560x1440 with a frame-time graph, then lower costly effects or use upscaling before assuming a new monitor needs a new GPU.
QHD at 240Hz is a performance question before it is a monitor question. A graphics card needs to render 3.69 million pixels for each 2560x1440 frame, and reaching 240fps means doing that work repeatedly with very little spare time.
Your graphics card can drive QHD at 240Hz only when the game, settings and CPU deliver close to 240 fps. Benchmark 2560x1440 with a frame-time graph, then lower costly effects or use upscaling before assuming a new monitor needs a new GPU. The Lenovo Legion 27Q-10 can display QHD at up to 240Hz, but the game computer determines how much of that capability appears in play.
An average frame rate can hide an unpleasant experience. A game averaging 220fps may still have repeated drops into a much lower range during smoke effects, a crowded fight or a dense outdoor scene. A frame-time graph shows those spikes more clearly than one big average number because it reveals whether frames arrive evenly.
Test the game at 2560x1440 in the map and mode you play most. Use the same route for at least ten minutes, record the low range as well as the peak, and repeat after changing one setting. A training range or a menu is useful for checking configuration but does not stand in for a real match. The monitor can refresh every 4.17ms at 240Hz; the PC still has to finish each new frame often enough to make that interval useful.
Full HD is 1920x1080, or about 2.07 million pixels per frame. QHD is 2560x1440, or about 3.69 million. That is roughly 78% more pixels for the graphics card to shade before considering advanced lighting, shadows, particle effects or high-resolution textures. A system that feels comfortable at 240fps in Full HD may therefore need different settings at QHD.
This is not a reason to avoid QHD. At 27 inches, the additional detail can improve text, interfaces and fine game scenery. It is a reason to plan the compromise honestly. If a game is CPU limited, lowering resolution may barely change the fps. If it is GPU limited, reducing a heavy graphical setting or using an upscaling mode may give a more noticeable result.
Start with settings that have a large GPU cost but a smaller impact on gameplay: demanding shadow quality, ambient occlusion, reflection quality, volumetric effects and supersampling are common candidates. Change one, run the same test, and note the difference. Avoid blindly choosing the lowest preset because texture detail, view distance and visibility can matter more to the game you enjoy.
If the game has a well-implemented upscaling option, test it at a sensible quality setting. The useful result is not the largest fps number but a stable image whose fine detail still looks acceptable at your seating distance. A frame cap can also help a PC deliver more even motion than a wildly fluctuating uncapped rate.
Review graphics card options only after you know whether the limitation is GPU performance, CPU performance or one game setting. A hardware purchase should solve the measured bottleneck, not a guess.
Once the PC result is known, set the operating system to 2560x1440 and 240Hz, then confirm the monitor menu reports the same mode. Use a suitable direct DisplayPort 1.4 HBR3 or HDMI 2.1 TMDS connection for the listed Legion inputs. Enable adaptive sync on the monitor and compatible driver so uneven delivery can be handled more gracefully.
The target is not necessarily 240fps in every title. A stable lower range can still look smooth and let QHD image detail do useful work. Competitive players may tune for high fps in one game while retaining a richer setting for solo play in another.
For the display side of the decision, compare gaming monitors after the performance test has identified the real limit.
It can. QHD has about 78% more pixels per frame, so a GPU-limited game usually needs more rendering work than at Full HD.
Yes. A CPU-limited game may not gain much fps when resolution is lowered. Compare CPU and GPU usage, then test a setting that changes the likely bottleneck.
No. The display can still refresh at 240Hz, and a high, stable rate can look and feel responsive. It simply does not use the maximum ceiling every moment.
Ready to judge QHD performance with evidence? Benchmark the games you play, then match a display upgrade to the bottleneck you actually found.
It can. QHD has about 78% more pixels per frame, so a GPU-limited game usually needs more rendering work than at Full HD.
Yes. A CPU-limited game may not gain much fps when resolution is lowered. Compare CPU and GPU usage, then test a setting that changes the likely bottleneck.
No. The display can still refresh at 240Hz, and a high, stable rate can look and feel responsive. It simply does not use the maximum ceiling every moment.
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Windows transparency effects can be switched off to make supported backgrounds more opaque. Use Accessibility, Visual effects or the colour settings, then compare a menu against your wallpaper. This R0 preference changes appearance; it is not a promised.
Windows title bar window shake can minimise other open windows when you shake the active window by its title bar. Inspect the Multitasking setting and switch it off if that gesture interrupts your work. The preference costs R0 and does not require new hardware.
Windows Print Screen opens Snipping Tool when its keyboard preference is enabled. Change the option under Accessibility, Keyboard to choose another workflow. Test whether you need a clipboard image or a saved file.
Windows desktop icons missing may be a visibility setting. Right-click the desktop, choose View and inspect Show desktop icons. If only system icons are absent, use Desktop icon settings. Check the Desktop folder before assuming files were deleted.
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