Windows 11 vs Lubuntu 26.04 Llama.cpp Benchmark: Significant Performance Gap on RTX 5080
r/LocalLLaMA·low signal
Side-by-side benchmarks on identical hardware (RTX 5080, i9-14900KF) show measurable performance gaps between Windows 11 and Lubuntu 26.04 running llama.cpp, including Vulkan backend comparisons. The gap was described as larger than expected by the tester. High engagement at 67↑ with 65 comments debating OS overhead for local inference workloads.