Today, it has just done just that, and users running Pascal- and Turing-based GTX cards can start playing with rays by downloading the DXR ready driver. Nvidia’s response is an interesting one: release a driver enabling ray tracing in its more recent GTX GPUs, thus allowing technical press and consumers to turn the effect on in games and – presumably – show clearly the difference that RT Cores can make, while allowing existing customers to not feel left out. RT Cores are exclusive to the Nvidia RTX family of GPUs, and until now these have been the only GPUs capable of running real-time ray tracing in the handful of games and demos that currently support it. The obvious implication was that real-time ray tracing can be achieved on today’s high-end GPUs, throwing the value of Nvidia’s dedicated RT Cores into serious question. Released by Crytek, it was shown running at perfectly playable frame rates on none other than the AMD Radeon RX Vega 56, a GPU with zero processing units dedicated to ray tracing. Nvidia took considerable flak from online communities last month following the reveal of the Neon Noir real-time ray tracing demo. Nvidia has made good on last month’s promise to enable ray tracing support on non-RTX graphics cards by releasing a driver update enabling DirectX Raytracing (DXR) for selected GTX GPUs.
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