Intel XeSS

Intel XeSS
Name	Intel XeSS
Developer	Intel
Released	27 September 2022
Operating system	Microsoft Windows
Genre	Upscaling technology
Website	https://www.intel.com/content/www/us/en/products/docs/arc-discrete-graphics/xess.html

Intel XeSS. It is an AI-driven upscaling technology developed by Intel for its line of Arc graphics processing units, designed to boost frame rates in video games while maintaining high image quality. The technology leverages machine learning and temporal data to reconstruct detailed images from a lower-resolution render, similar in concept to competing solutions from AMD and NVIDIA. XeSS is a key component of Intel's strategy to compete in the modern discrete GPU market.

Overview

Unveiled alongside the Intel Arc Alchemist architecture, the technology was positioned as a direct competitor to NVIDIA DLSS and AMD FidelityFX Super Resolution. Its initial public demonstration occurred during the Intel Architecture Day 2021 event, showcasing its potential in titles like The Riftbreaker and Hitman 3. The SDK was officially released to developers in August 2022, with public driver support following the launch of the Arc A770 and Arc A750 graphics cards. Integration into game engines such as Unreal Engine and Unity has been a focus for broader industry adoption.

Technology

The core of the technology is a neural network trained on a supercomputer using a massive dataset of high-resolution game imagery. This network executes via two primary pathways: a dedicated hardware-accelerated path for Intel Arc GPUs with Xe Matrix Extensions hardware, and a fallback DP4a instruction path compatible with a wider range of graphics cards from AMD and NVIDIA. It employs a temporal anti-aliasing technique, reusing data from previous frames and applying motion vectors to reduce artifacts like ghosting and shimmering. The reconstruction process is performed in a single pass, with quality presets such as Performance, Balanced, and Quality determining the internal render resolution.

Hardware support

Full hardware acceleration is exclusive to Intel Arc GPUs based on the Xe-HPG microarchitecture, including the Arc A770, Arc A750, and mobile Arc A370M. The DP4a-based version, known as XeSS DP4a, extends support to many modern GPUs from competing manufacturers, including NVIDIA GeForce RTX 20 series and later, as well as AMD Radeon RX 6000 series and newer products. This cross-vendor compatibility is a distinguishing feature, though performance and image quality are optimized on Intel's own silicon. The technology also requires support from the game's rendering engine and integration by the developer.

Performance and image quality

Analyses from reviewers like Digital Foundry and TechSpot have shown that on capable Intel Arc hardware, the technology can deliver image quality comparable to its internal render resolution at native settings, with significant gains in frames per second. The Quality mode often provides a near-native visual experience, while Performance mode offers the largest frame rate uplift. Artifacts, particularly in fast-moving scenes with complex particle effects, have been noted in early implementations but have improved with subsequent driver updates from Intel. The DP4a path generally produces slightly lower image fidelity compared to the native XMX-accelerated path.

Comparison with competitors

The landscape is defined by three primary solutions: Intel's offering, NVIDIA DLSS which relies on proprietary Tensor Cores, and AMD FidelityFX Super Resolution which uses a spatial upscaling method. NVIDIA DLSS is often praised for its superior image reconstruction and broader game support, while AMD FSR is notable for its open-source nature and extensive hardware compatibility. Intel's technology is unique in offering a quality-focused, AI-driven model that also functions on competitor hardware via the DP4a path, positioning it as a middle ground. The competitive dynamics continue to evolve with the introduction of NVIDIA DLSS 3 with Frame Generation and AMD FidelityFX Super Resolution 3.

Development and adoption

The development team, part of the Intel Accelerated Computing Systems and Graphics Group, has worked closely with major game studios and publishers to integrate the technology into new releases. Early supporting titles included Shadow of the Tomb Raider, Call of Duty: Modern Warfare II, and The Witcher 3: Wild Hunt. The open-source release of the Intel XeSS SDK has encouraged integration into popular middleware and game engines. Adoption has grown steadily, with over fifty games featuring support by early 2024, though it still trails the library of games supporting NVIDIA DLSS. Future development is expected to align with the launch of next-generation Intel Arc Battlemage GPUs.

Category:Intel graphics processing units Category:Video game graphics Category:Computer-related introductions in 2022