>>105692552
Back in the late 2010s, there was a need for NVIDIA's workstation GPUs to have Tensor cores (for AI training & inference) and RT cores.
They don't design a gaming-exclusive GPU, GeForce chips are just reconfigured from multi-purpose GPUs.
So NVIDIA had to introduce new gaming graphics features that justified the Ray Tracing and Tensor cores they added with Turing GPUs (RTX 20).

Real-time ray tracing makes use of those RT cores but is very hardware-demanding to run.
NVIDIA developed DLSS that uses the Tensor cores to improve performance by upscaling graphics from a lower internal resolution.