DLSS 4.5 reduces motion artifacting in ray tracing but doesn't solve fidelity

GG Brief Editorial Desk · AI-assisted, source attributed

Nvidia's DLSS 4.5 Ray Reconstruction is designed to reduce visual artifacting that appears when ray-traced or path-traced scenes move. The feature reconstructs full frames from a limited number of sampled rays to improve image stability and reduce motion trails. It improves perceived quality but does not eliminate the high compute cost of full path tracing or completely resolve motion-related fidelity issues, so the technique still favors high-end GPUs.

• DLSS 4.5 specifically targets denoiser artifacts that produce visual trails when the camera or objects move in ray‑traced/path‑traced games.
• The feature reconstructs frames from sparse ray samples to produce sharper, more stable images in motion compared with prior denoising passes.
• Tracing every photon/pixel remains prohibitively expensive, so games continue to rely on small numbers of sampled rays plus denoisers to produce final frames.
• Because artifacts persist and full path tracing demands massive compute, DLSS 4.5 improves but does not fully solve motion fidelity; the approach remains most practical on powerful GPUs.