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The 'RTX' in NVIDIA's new GeForce GPUs doesn't refer to just ray tracing alone

These games will support NVIDIA RTX technologies. (Source: Overclock3D)
These games will support NVIDIA RTX technologies. (Source: Overclock3D)
Games supporting NVIDIA's RTX technologies are assumed to have some form of ray tracing enabled but NVIDIA has clarified that RTX support not only refers to ray tracing but also to Deep Learning Super Sampling as well. NVIDIA has also released a list of games that support ray tracing and DLSS.
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NVIDIA showed off the ray tracing powers of its latest graphics cards at Gamescom 2018 and left everyone impressed. However, real world performance is feared to take a hit due to the extensive computations involved in tracing a ray from a point source of light to its destination. Developers, therefore, will have to specifically enable ray tracing abilities in their games, which means not all games will be supporting it right away. Also, just because a game is RTX-enabled, doesn't mean you will get to see light bouncing off walls and objects in real time. 

RTX is more of a fancy term to collectively indicate ray tracing and AI functionality. According to NVIDIA, if a game supports RTX technologies, it enables either of these two functionalities — real time ray tracing or AI-driven Deep Learning Super Sampling (DLSS). Real time ray tracing uses Microsoft DirectX Raytracing (DXR) APIs aided by dedicated RT cores on the Turing GPUs. DLSS, on the other hand, uses Turing's Tensor Cores to apply AI to rendering that results in better image quality. As of date, about 11 upcoming games support ray tracing including —

  • Assetto Corsa Competizione
  • Atomic Heart
  • Battlefield V
  • Control
  • Enlisted
  • Justice
  • JX3
  • MechWarrior 5: Mercenaries
  • Metro: Exodus
  • ProjectDH
  • Shadow of the Tomb Raider

A slightly larger number of games feature support for DLSS. These include —

  • Ark: Survival Evolved
  • Atomic Heart
  • Dauntless
  • Final Fantasy XV
  • Fractured Lands
  • Hitman 2
  • Islands of Nyne
  • Justice
  • JX3
  • Mechwarrior 5: Mercenaries
  • Player Unknown's Battlegrounds
  • Remnant: From the Ashes
  • Serious Sam 4: PLanet Badass
  • Shadow of the Tomb Raider
  • The Forge Arena
  • We Happy Few

Some of the games such as Shadow of the Tomb Raider, Mechwarior 5: Mercenaries, Justice, JX3, and Atomic Heart feature both ray tracing and DLSS support, which makes performance evaluation in these games very interesting.

NVIDIA's GeForce RTX definitely aims to bring a level of immersiveness never seen before in video games. Ray tracing is not new but the implementation of the technique in video games is, so there will be performance variations depending on how developers implement RTX in their games. It also not clear at this stage if partial implementation of RTX is possible to achieve a fair trade-off between visual fidelity and performance. We will be knowing actual benchmarks only post September 20 so we'd suggest holding off pre-orders till then. 

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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1344 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2018 08 > The 'RTX' in NVIDIA's new GeForce GPUs doesn't refer to just ray tracing alone
Vaidyanathan Subramaniam, 2018-08-23 (Update: 2018-08-23)