LG's UltraGear evo upscales games to 5K inside the monitor

LG’s 5K AI upscaling runs inside the monitor, on a built-in processor, after your graphics card has already finished the frame. Four of the six 2026 UltraGear evo models carry it. Because it only ever sees finished pixels, it can clean up edges and gradients but cannot rebuild detail the game never rendered.

What LG’s 5K AI upscaling is and where it runs

A processor inside the monitor takes whatever signal arrives over the cable and scales it to the panel’s native resolution in real time. LG describes it on its CES 2026 UltraGear evo page as enhancing content from any device, with no GPU upgrade needed. That last part is true, and it is the main reason to want the feature.

The monitor’s processor only starts work once the GPU has finished the frame and the cable has carried it across. All it receives is finished pixels. It never gets the depth map or the motion data that tells an upscaler what the camera did between frames.

LG says AI Upscaling needs at least an FHD source signal, per VideoCardz’s coverage of the lineup. It will not run on anything below 1080p, which rules out the classic use case of rescuing a low-resolution stream.

Which models carry the feature

LG pitches it as if the whole lineup had it, but the spec sheets list it on four models, counting the later 45-inch 45GX950B.

If the feature is why you are shopping, check the model number rather than the family name. The 52-inch 52G930B, for one, skips upscaling entirely.

How is monitor upscaling different from DLSS?

DLSS and FSR run inside the render pipeline, where the game engine can hand them information that never reaches a cable. NVIDIA’s DLSS programming guide requires depth, motion vectors and render-resolution color as inputs. AMD’s FSR upscaler documentation asks for the same set, plus the camera jitter offset, and keeps its own history across frames.

Motion vectors are the most important input. They tell the upscaler where each pixel was in the last frame so it can carry real detail forward instead of guessing. Depth tells it which surfaces are in front of which. An in-monitor upscaler has neither.

With one input, the monitor can still do useful work:

• Edge reconstruction, so diagonal lines look less stepped.
• Gradient smoothing, which cuts banding in skies and dark scenes.
• Noise reduction on compressed video, where the source is soft anyway.

The monitor cannot restore geometry detail that was never rendered. Thin lines, wires, fences and distant foliage will still shimmer in motion, because stabilizing those needs motion data. Temporal accumulation, the trick that makes DLSS look better than the frame it started from, is off the table here.

The name is shared, but DLSS and FSR are part of rendering, and LG’s feature is display processing applied afterwards.

The latency cost is still unpublished

Every processing pass inside a monitor costs time. The image has to be buffered, analyzed and rebuilt before it reaches the panel.

LG hasn’t published a figure, and neither the CES page nor the lineup coverage gives a millisecond number for the pass. Treat any number quoted elsewhere with suspicion.

At 165Hz, a single frame lasts about 6ms. If the upscaler holds one frame, that is roughly a sixth of the input lag budget a competitive player cares about. At 330Hz in Dual Mode, one frame is about 3ms.

You can measure it yourself without lab gear. Set a phone to slow-motion video, film your mouse and the screen together, and count frames from click to reaction. Run the test once with upscaling on and once with it off. The gap between the two runs is what the feature costs.

LG has not said whether upscaling can be switched off per input, which is important when a console shares the monitor with a PC. Refresh rate changes the behavior as well. TFTCentral’s 39GX950B review found it upscaled a 1080p Xbox signal at 60Hz and 120Hz, but did nothing in Dual Mode or at 1080p 240Hz from a PC. Its behavior in HDR is undocumented.

Should you leave it switched on?

Switch it off for the desktop and for reading text. Upscaling only applies to content below the panel’s native resolution, and your desktop already runs at native. There is nothing to reconstruct, and any processing pass is a chance to soften text. A dense native panel makes the feature moot, which is the pitch behind LG Display’s 220 PPI 5K OLED panel.

Streaming video below 4K is where in-panel processing has always earned its place, so turn it on there. Compressed video is soft and noisy to begin with, and edge cleanup plus noise reduction help. A few milliseconds of added lag make no difference during a film.

Leave it on for handhelds and consoles too. LG’s own demo pairs the monitor with a handheld, and that is a fair choice: a handheld puts out a fixed low resolution with no upscaler of its own, so the monitor is the only thing in the chain that can do the job.

For single-player games at a lower render resolution, try both and judge on motion rather than stills. Pause a screenshot and the upscaled version usually looks sharper. Walk past a fence and you will see whether the shimmer got worse.

Switch it off for competitive shooters, where an unpublished latency cost buys an improvement you would never notice mid-match. Use the panel’s Dual Mode to drop resolution and raise refresh instead. On a 32-inch OLED that trade lands at 1080p at 480Hz, a quarter of the pixels for double the frames.

Treat it as a nice inclusion rather than a reason to buy. If you were already choosing a 27GM950B for its 2,304 dimming zones or a 39GX950B for its Tandem OLED panel, the upscaler is a small bonus on top. If it is the headline that pulled you in, expect less than the name promises.