Graphics fundamentals
Resolution, Frame Rate and Upscaling Explained
A game can render, reconstruct and display images at different rates and resolutions. Learn how those terms relate and what to look for in a real game setting.
Resolution describes an image grid
A resolution such as 1920 by 1080 describes the number of pixels in an image: 1,920 across and 1,080 down. A display has a native resolution, but a game can render at another resolution and then scale the result before sending it to the screen. A product claim that says '4K output' tells you the signal or final image size; by itself it does not tell you the internal rendering resolution or the reconstruction method used to reach it.
Pixel count is only one part of perceived image quality. Anti-aliasing, texture detail, contrast, motion, viewing distance and the display itself also matter. A high-resolution still image may look sharp but show instability during movement. Conversely, a lower internal resolution can appear cleaner after a well-tuned reconstruction technique. The useful comparison is the image while playing at the settings you intend to use, not only a box label or a cropped screenshot.
Frame rate and refresh rate measure different things
Frame rate, commonly reported in frames per second or FPS, describes how many frames a game produces over time. Refresh rate, measured in hertz, describes how often a display can refresh its image. A game producing 60 frames per second and a display refreshing at 60 hertz are different measurements that often align in a familiar setup, but neither number guarantees the other. A game can be capped below a monitor's maximum, and the system may not sustain its target in every scene.
Higher and more consistent frame delivery can make motion appear smoother and input feedback more immediate, but the result depends on the game, display, synchronization settings and the player's sensitivity to motion. Average FPS also hides irregular frame pacing: a sequence that swings sharply can feel less consistent than one with the same average. When reviewing a performance claim, check whether it names an average, a locked target, a range or a best-case result.
Synchronization affects how frames meet the screen
A graphics system and a fixed-refresh display may not finish each frame at the same moment. Synchronization methods coordinate delivery to reduce visible tearing or uneven presentation. Variable-refresh displays can change their refresh timing within a supported range to follow the frame delivery more closely. These features depend on the display, graphics hardware, connection, driver, game and settings working together; a label on one component does not establish that every setup supports the same range.
For a practical check, look up the exact monitor or television model and confirm its supported input, refresh modes and adaptive-sync range. Then check whether the game exposes a frame-rate limit or synchronization option. A console's output capability and a display's specification can both be valid while a particular game still runs below the maximum. Read the whole signal chain rather than treating the highest number in a product listing as the play experience.
Upscaling reconstructs a larger output image
Upscaling begins with an image rendered at a lower resolution and produces a larger output image. The simplest methods scale existing pixels. More advanced game-integrated techniques can use data from multiple frames, motion information, image models or other inputs to reconstruct details. NVIDIA describes DLSS Super Resolution as using motion vectors and prior-frame information; AMD's FidelityFX materials distinguish its game-integrated features from driver-level Radeon Super Resolution; PlayStation describes PSSR as an image analysis and upscaling library. The implementations are not interchangeable, even though they share a broad goal.
The benefit is a possible balance between image quality and rendering cost: a game can ask the GPU to render fewer pixels, then spend additional work reconstructing a larger frame. Results depend on the algorithm, mode, game implementation, source resolution and motion in the scene. Fine lines, particles, foliage and fast movement can reveal artifacts that are hard to see in a static image. Quality modes are choices between detail and speed, not universal guarantees.
Frame generation is not the same as rendering more game frames
Frame generation inserts or synthesizes images between conventionally rendered frames. It can raise the displayed frame count, but those generated images are not identical to additional frames in which the game has simulated a fresh input and world state. As a result, a displayed FPS counter can rise while input latency, motion clarity or image stability follow different behavior. Upscaling changes image size and detail reconstruction; frame generation changes the sequence of images shown. Some products combine both, so separate settings and measurements matter.
When reading a performance claim, ask whether the number is rendered FPS or displayed FPS, whether frame generation is enabled, and what latency or response-time measure accompanies it. Compare like with like. If a review says one mode renders 45 frames and displays a generated 90, that describes a different configuration from a native 90-frame render. Both may be useful; they answer different questions.
A checklist for comparing graphics claims
Read a performance label by finding the missing conditions. Identify the game and build, output resolution, internal resolution if disclosed, quality preset, reconstruction mode, frame-generation setting, scene, hardware and measurement. Look for image comparisons captured at the same time and on the same display. Prefer repeatable tests with frame-time data alongside averages. If one vendor provides a feature description, it is a primary source for how that vendor says the feature works, but it is not an independent test of competing products.
A sensible choice depends on what you value most. Someone prioritizing a stable target may select a lower quality preset. Another player may prefer native rendering or a sharper reconstruction even with a lower frame rate. A competitive game may make response and frame pacing more important; a slower narrative game may make image detail more important. There is no single best mode for every title, screen and player.
Test settings in the scene you actually play
If a game offers a built-in benchmark, start there and keep the settings fixed while changing one option at a time. Then visit a real scene with the motion and effects that matter to you. Compare edge stability, fine detail, motion, frame pacing and controls, not only the FPS counter. If a setting creates ghosting or shimmer that bothers you, the highest displayed number may not be the best result for your use.
Record the game version and settings if you share a comparison. Patches can change render paths, hardware drivers can alter performance, and a new reconstruction model can change image quality. A short note identifying the tested configuration turns a vague statement into useful context for another player.
Further reading
Sources
Official documentation used to check the product-specific examples in this guide. Accessed October 9, 2026.
- NVIDIA GeForceNVIDIA DLSS — How It Works
DLSS reconstruction using current-frame data, motion vectors and prior-frame information.
- AMDAMD FidelityFX
FSR feature overview and the need for game support on selected products.
- PlayStation.BlogUpgraded PSSR upscaler is coming to PS5 Pro
Sony's description of PSSR as an image-analysis and upscaling library.
- Intel GamingHow to Fix Your Low Frame Rate
FPS terminology, monitor refresh rate and render-scaling distinctions.
Platform terms, compatibility lists and product documentation can change. Check the linked source for the current details that apply to your device, game and region.