NVIDIA GeForce RTX 30 Series OpenCL / CUDA / OptiX Compute + Rendering Benchmarks - Phoronix

That's the quick look at the current RTX 30 line-up compared to the RTX 20 series in a wide variety of GPU compute/rendering workloads.

CUDA vs OptiX Render in Blender Cycles

RX 6800 XT is 12% faster than RTX 3080 on Linux (source in comments) : r/Amd

Blender 3.4 HIP Performance With Radeon RX 7900 Series + RDNA3 OpenCL Compute Benchmarks - Phoronix

GeForce RTX SUPER Linux Compute Performance - 18 GPU NVIDIA OpenCL Comparison - Phoronix

NVIDIA GeForce RTX 30 Series OpenCL / CUDA / OptiX Compute + Rendering Benchmarks - Phoronix

AMD vs. NVIDIA GPU Rendering Performance: Blender, Octane, Redshift & More

NVIDIA GeForce RTX 4090/4080 Linux Compute CUDA & OpenCL Benchmarks, Blender Performance Review - Phoronix

NVIDIA GeForce GTX 1060 To RTX 4060 GPU Compute & Renderer Performance On Linux Review - Phoronix

NVIDIA GeForce RTX 4090/4080 Linux Compute CUDA & OpenCL Benchmarks, Blender Performance Review - Phoronix

NVIDIA GeForce RTX 30 Series OpenCL / CUDA / OptiX Compute + Rendering Benchmarks - Phoronix

NVIDIA GeForce RTX 3080 Offers Up Incredible Linux GPU Compute Performance Review - Phoronix