gpt-oss-20b on RTX 5090 (32GB) + AMD EPYC 7543 32-Core Processor (120c) + 945GB
MeasuredOn 2026-10-17, gpt-oss-20b Q4_K_M ran at 324.2 tok/s (chat-short) on an RTX 5090 (32GB) with llama.cpp. Run r_dwp5fgdapmw.
RTX 5090 (32GB) + AMD EPYC 7543 32-Core Processor (120c) + 945GB
suite suite-v1
cli 0.0.7
signediQulDd4WpN…
Embed badgesubmitted Oct 17, 2026Workload results
| Workload | Backend | Model | decode tok/s | prefill tok/s | TTFT | p50 | p95 |
|---|---|---|---|---|---|---|---|
| chat-short | llama.cpp@0.7.0-dev (build 1, commit 1268eda) | gpt-oss-20bQ4_K_M | 324.2tok/s | 586.8tok/s | 283ms | 3.1ms | 3.3ms |
| chat-long | llama.cpp@0.7.0-dev (build 1, commit 1268eda) | gpt-oss-20bQ4_K_M | 311.0tok/s | 12,638.4tok/s | 252ms | 3.2ms | 3.4ms |
| concurrent-decode | llama.cpp@0.7.0-dev (build 1, commit 1268eda) | gpt-oss-20bQ4_K_M | 322.5tok/s | — | — | 3.1ms | 3.4ms |
| agent-trace | llama.cpp@0.7.0-dev (build 1, commit 1268eda) | gpt-oss-20bQ4_K_M | 319.6tok/s | 23,887.0tok/s | 89.2ms | 3.1ms | 3.3ms |
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https://llm-speed.com/r/r_dwp5fgdapmwRelated benchmarks
- More gpt-oss-20b benchmarks — every backend and rig that has run this model.
- More RTX 5090 (32GB) LLM benchmarks — every model measured on this hardware.
Provenance
- Run ID
- r_dwp5fgdapmw
- Fingerprint hash
- Public key
- iQulDd4WpNzH3AePs8pOZJIxyazd7uBTLvjABnwzRYc=
- Received
- 2026-10-17 09:57:11