NVIDIA GeForce RTX 4090/4080 Linux Compute CUDA & OpenCL Benchmarks, Blender Performance
Going from the RTX 2080 SUPER to RTX 4080 yielded a 3x improvement in the Leela Chess Zero AI-based chess engine with its OpenCL back-end.
Or the RTX 2080 SUPER to RTX 4080 was 3.2x the performance-per-Watt for this open-source software.
The RTX 4080 and RTX 4090 continued impressing when it came to the LuxCoreRender open-source GPU render performance across a range of workloads.