Ray tracing, upscaling and frame generation: what to buy for

By James Thompson · Updated:

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Ray tracing can make lighting look excellent, while upscaling can recover useful performance. I’d pay for those features when they improve the games I actually play. Here’s how I judge them alongside the card’s ordinary rendering performance.

Choose the exact Radeon or Nvidia model in the gaming GPU shortlist. For a mixed creative PC, compare the editing GPU guide as well as the gaming features.

Ray-traced effects can improve lighting or reflections, but their cost varies greatly between games and settings. Check the exact effect and preset used in a review. A card that runs one title well does not inherit the same result in another.

If the visual improvement matters to you, include representative ray-tracing tests in the shortlist. If you normally disable it, do not pay for an assumed advantage you will not use.

Upscaling changes the input resolution

Reconstruction renders from a lower-resolution input to the selected output mode. Compare image quality in movement as well as frame rate. Fine detail, disocclusion and interface elements can expose problems that a still screenshot hides.

Keep native rendering and reconstructed results labelled separately. “1440p output” can contain several different internal rendering loads.

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Frame generation changes displayed frames

Generated frames are inserted between rendered frames. They can improve the apparent smoothness, but do not make each inserted image a fresh game-state update responding to new input. Assess baseline rendering responsiveness and latency separately.

Do not compare a generated-frame total on one GPU with native rendered performance on another. Check supported games and hardware, and the tester’s measurement method.

Features are specific to hardware and games

NVIDIA’s current DLSS documentation distinguishes reconstruction and frame-generation features and their hardware support. Check the exact feature rather than treating the DLSS name as identical support on every RTX generation.

Drivers and game updates can change available modes. Use the game’s current options when deciding which features you’ll use.

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Use the comparison to choose

Test the modes in games you already own if your hardware supports them. For a new purchase, look for side-by-side evidence with clearly labelled settings and responsiveness.

Compare graphics options for your screen and the 4K routes if the GPU budget is larger.

Choose the mode rather than the marketing total

Three settings answer different questions
1. Ray tracing

Which lighting effects are calculated?

2. Reconstruction

What internal resolution is used?

3. Frame generation

Which displayed frames are inserted?

Compare one mode at a time before stacking them. A sensible upscaling mode can buy enough performance for a richer lighting preset. Frame generation can then improve visual smoothness in a suitable game, but the base rendering rate remains useful context. The benchmark guide keeps those figures readable.

Photorealistic illustration of a graphics card and monitor showing a reflective futuristic street against a navy, cyan and violet background.

Check current feature support on the exact generation

NVIDIA’s current DLSS support table separates Super Resolution, Ray Reconstruction, Frame Generation and newer features by RTX generation. AMD’s FSR documentation likewise separates capabilities and supported games/hardware. A familiar umbrella name does not mean every card supports every mode.

Use NVIDIA’s current support matrix and AMD’s current FSR guidance alongside the game’s options. For purchasing, the gaming GPU shortlist compares the whole card; the specification guide covers the rest of the datasheet.