AI BriefingIntel B70 Backend Comparison
Key point
On Intel B70, llama.cpp OpenVINO became faster than SYCL, but still lagged behind LLM-Scaler.
Details
On Intel B70, llama.cpp's OpenVINO backend improved significantly over the existing SYCL, but was still slower than LLM-Scaler.
- Test model: bartowski/DeepSeek-R1-Distill-Llama-8B-GGUF:Q4_K_M
- Benchmark tool:
llama-benchy http://localhost:8000/v1
OpenVINO results
- pp2048: 3845.61 ± 524.73 t/s
- tg512: 40.89 ± 0.55 t/s
- peak t/s: 44.33 ± 1.25 t/s
- ttfr: 659.99 ± 56.95 ms
- e2e_ttft: 739.42 ± 56.84 ms
The author noted that while SYCL was fastest on tg512, prompt processing speed mattered more for actual usability, and OpenVINO showed a large improvement on that metric.
However, they added that since the pool of verified models for Intel GPUs is narrow, it took time to match models that work properly on OpenVINO with models that LLM-Scaler can support.
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