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Contributed byMario AlkaStepFun

Step-3.5-Flash

Performance benchmark · measured on 28.07.2026 19:25

Benchmark-IDrun-20260728-194136-6b48ca
Timebench 3 - Kombi (Prefill + Generation)Runtime: llama.cpp
Generation45,46tok/s
Prefill204,92tok/s
Time to First Token270.936,50ms
Total duration1.200,00s
Concurrency10parallel
Ranking in the field
38of 41 systems

Performance benchmark · Primary metric: Generation-Speed (tok/s) · 10× concurrent

This run is better than 8 % of all comparable systems.
Generation 45,5 tok/s
-95 % vs Ø 979,7
Prefill 204,9 tok/s
-98 % vs Ø 12.934,3
Time to First Token 270.937 ms
+852 % vs Ø 28.462
Distribution in the field0 – 2.414 tok/s
Ø 980 Median Dieser Lauf

Wie schlägt sich dieser Benchmark mit anderen Modellen?

gemma-4-E2B-itNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260727-181606-b37ed9
2.414,4 tok/s
NVIDIA-Nemotron-3-Nano-4BNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260727-181607-4cca42
2.182,7 tok/s
gpt-oss-20bNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-140954-8007c4
1.993,5 tok/s
gemma-4-E4B-itNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260727-181607-866815
1.758,6 tok/s
Laguna-XS-2.1NVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-140955-9f055e
1.757,4 tok/s
Laguna-XS-2.1NVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-140955-f34b37
1.753,8 tok/s
Laguna-XS-2.1NVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-140955-1e8c74
1.740,4 tok/s
Mamba-Codestral-7B-v0.1NVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-194136-5b0cb8
1.712,6 tok/s
North-Mini-Code-1.0NVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-164528-c87170
1.621,0 tok/s
Meta-Llama-3.1-8B-InstructNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-194137-bfb176
1.533,0 tok/s
gpt-oss-20bNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260723-194447-dc199d
1.443,9 tok/s
gpt-oss-120bNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-140953-f26a76
1.335,9 tok/s
Qwen3-Coder-NextNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-184455-9c52c0
1.253,3 tok/s
gemma-4-12B-itNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-194137-302ce3
1.104,3 tok/s
Step-3.5-Flash this runNVIDIA RTX PRO 6000 Blackwell Workstation Edition · run-20260728-194136-6b48ca
45,5 tok/s

How does this benchmark compare on other GPUs?

Same model on different hardware · 10× concurrent · Generation (tok/s)

Hardware

GPU: NVIDIA RTX PRO 6000 Blackwell Workstation Edition · 96 GB VRAM
CPU: AMD Ryzen 9 9950X 16-Core Processor
RAM: 92 GB
Mainboard: ASUSTeK COMPUTER INC. ProArt X870E-CREATOR WIFI

Setup

Runtime: llama.cpp
Quantization: -
Model: Step-3.5-Flash

Configuration

benchmark-konfiguration — run-20260728-194136-6b48ca
# LLM-Benchmark Konfiguration # Modell : Step-3.5-Flash # Engine : llama.cpp # Run-ID : run-20260728-194136-6b48ca # GPU : NVIDIA RTX PRO 6000 Blackwell Workstation Edition # CPU : AMD Ryzen 9 9950X 16-Core Processor # RAM : 92 GB bench@llm-benchmark:~$ /home/godcore/llama.cpp/build/bin/llama-server \ -m /home/godcore/.cache/huggingface/hub/models--stepfun-ai--Step-3.5-Flash-GGUF-Q4_K_S/snapshots/6930492fee9ffd6f13c2e665a94244c60d2d7d83/step3p5_flash_Q4_K_S-00001-of-00012.gguf \ --alias Step-3.5-Flash \ --host 0.0.0.0 \ --port 8000 \ -ngl 30 \ -c 16384 \ -np 4 \ --jinja
Engine?Die Inferenz-Software, die das Modell ausliefert (z.B. vLLM oder llama.cpp). Sie bestimmt Geschwindigkeit, unterstuetzte Modellformate und welche Parameter ueberhaupt verfuegbar sind.llamacpp
Modellalias?Der Name, unter dem das Modell ueber die API angesprochen wird. Genau dieser Wert muss im Request-Feld 'model' stehen.Step-3.5-Flash
Kontextlaenge?Maximale Anzahl Tokens (Eingabe + erzeugte Ausgabe zusammen), die das Modell pro Anfrage verarbeiten kann.16384
Modellpfad?Pfad zur GGUF-Modelldatei, die geladen und ausgeliefert wird./home/godcore/.cache/huggingface/hub/models--stepfun-ai--Step-3.5-Flash-GGUF-Q4_K_S/snapshots/6930492fee9ffd6f13c2e665a94244c60d2d7d83/step3p5_flash_Q4_K_S-00001-of-00012.gguf
GPU-Layer?Anzahl der auf die GPU ausgelagerten Modell-Layer. Hoeher = mehr VRAM und schneller; der Rest laeuft auf der CPU. 999 = alles auf GPU.30
Kontext?Groesse des Kontextfensters in Token. 0 = der beim Training verwendete Kontext des Modells.16384
np4

All benchmarks of this model To leaderboard

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Model comparison

Step-3.5-Flash on various hardware

All published performance runs of this model – each bubble a variant: position = prefill (X) × generation (Y), bubble size = number of runs. Closer to the top right = faster. ★ Marked gold = this benchmark.

GPUby graphics card

9547164772390,001.2592.5173.776Prefill (tok/s)Generation (tok/s)NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition - 739,1 tok/s Generation, 3.071 tok/s Prefill, TTFT 7.944 ms (3 Laufe)NVIDIA RTX PRO 6000 B...AMD Radeon AI PRO R9700 - 31,6 tok/s Generation, 298 tok/s Prefill, TTFT 54.060 ms (2 Laufe)AMD Radeon AI PRO R97...NVIDIA RTX PRO 6000 Blackwell Workstation Edition - 45,5 tok/s Generation, 174 tok/s Prefill, TTFT 129.867 ms (3 Laufe) | DIESER LAUF★ NVIDIA RTX PRO 6000 B...
NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation Edition 739,1 tok/s★ NVIDIA RTX PRO 6000 Blackwell Workstation Edition 45,5 tok/s this runAMD Radeon AI PRO R9700 31,6 tok/s

CPUby processor

9547164772390,001.2592.5173.776Prefill (tok/s)Generation (tok/s)AMD Ryzen Threadripper PRO 9965WX 24-Cores - 739,1 tok/s Generation, 3.071 tok/s Prefill, TTFT 7.944 ms (3 Laufe)AMD Ryzen Threadrippe...AMD Ryzen Threadripper PRO 7955WX 16-Cores - 31,6 tok/s Generation, 298 tok/s Prefill, TTFT 54.060 ms (2 Laufe)AMD Ryzen Threadrippe...AMD Ryzen 9 9950X 16-Core Processor - 45,5 tok/s Generation, 174 tok/s Prefill, TTFT 129.867 ms (3 Laufe) | DIESER LAUF★ AMD Ryzen 9 9950X 16-...
AMD Ryzen Threadripper PRO 9965WX 24-Cores 739,1 tok/s★ AMD Ryzen 9 9950X 16-Core Processor 45,5 tok/s this runAMD Ryzen Threadripper PRO 7955WX 16-Cores 31,6 tok/s

MBby mainboard

9527144762380,008001.6012.401Prefill (tok/s)Generation (tok/s)ASUSTeK COMPUTER INC. Pro WS WRX90E-SAGE SE - 739,1 tok/s Generation, 1.962 tok/s Prefill, TTFT 26.391 ms (5 Laufe)ASUSTeK COMPUTER INC....ASUSTeK COMPUTER INC. ProArt X870E-CREATOR WIFI - 45,5 tok/s Generation, 174 tok/s Prefill, TTFT 129.867 ms (3 Laufe) | DIESER LAUF★ ASUSTeK COMPUTER INC....
ASUSTeK COMPUTER INC. Pro WS WRX90E-SAGE SE 739,1 tok/s★ ASUSTeK COMPUTER INC. ProArt X870E-CREATOR WIFI 45,5 tok/s this run

ENGby engine

8137767397026651.2141.2661.3171.369Prefill (tok/s)Generation (tok/s)llama.cpp - 739,1 tok/s Generation, 1.291 tok/s Prefill, TTFT 65.194 ms (8 Laufe) | DIESER LAUF★ llama.cpp
★ llama.cpp 739,1 tok/s this run

DRVby driver

8137767397026651.2141.2661.3171.369Prefill (tok/s)Generation (tok/s)unbekannt - 739,1 tok/s Generation, 1.291 tok/s Prefill, TTFT 65.194 ms (8 Laufe)unbekannt
unbekannt 739,1 tok/s
💰 Economics

Economics of this run

Operating cost, TCO and comparison with the next-best runs of the same model at identical concurrency (10× concurrent). Methodology →

⚙️ ConfigurationAll metrics and charts below follow these settings – based on a 24-month runtime.Save to URLReset
⚡ Electricity price EUR/kWh
⚙️ System utilization 100 %
🖥️ Acquisition EUR
🔌 Idle 70 W
⚡ TDP 644 W
☁️ External LLM (API)
Electricity0.30 EUR/kWh
Avg power (incl. idle)644 W estimated (TDP)GPU 600 + CPU 29 + Board 15 W full load
Avg cost / hourEUR 0.19
Electricity / 1M tokensEUR 1.18
Token / kWh254.22K
Acquisition (system)EUR 15,248 full priceGPU EUR 13,000 · CPU EUR 649 · Board EUR 499 · RAM EUR 920 · PSU EUR 180
Electricity (2 years)
TCO (2 years)EUR 18,632
Output tokens (2 years)2.87B
☁️ External LLM (API) – comparison
External LLM cost (2 years)
Savings vs. external (2 years)

All values above and the charts below take the configured system utilization into account: at X% the system generates only X% of the time, the rest it idles (70 W). Cost per hour drops (more idle), cost per token rises.

Cost over 2 years – electricity only

Cost over 2 years – incl. acquisition (TCO)

Speed vs. tokens per euro

Euro per 1M tokens

Comparison vs. API – economics per benchmark

Step-3.5-FlashNVIDIA RTX PRO 6000 Blackwell Workstation EditionStep-3.5-Flash3x NVIDIA RTX PRO 6000 Blackwell Max-Q Workstation EditionStep-3.5-Flash3x AMD Radeon AI PRO R9700
Electricity cost (24 mo.)
Acquisition cost
Total cost (TCO)
Generated tokens (24 mo.)
Token price via API
Break-even point (days)
Result (savings / extra cost)

Comparison with up to 3 next-best runs of this model at the same concurrency (at least one on different hardware). Power = GPU TDP + CPU (idle + 15 %) + board (estimated), acquisition = full system (GPU + CPU + board + RAM + PSU), prices = stored market prices.

Contributed by

Mario Alka Administrator

@marioalka

Ich bin Unternehmer, Softwareentwickler und KI-Enthusiast. Seit vielen Jahren entwickle ich Unternehmenssoftware und beschäftige mich inzwischen fast täglich mit lokalen LLMs, KI-Agenten und leistungsfähiger KI-Hardware.

Mit LLM-Benchmark.de möchte ich eine Plattform schaffen, auf der Modelle, GPUs und Agenten objektiv und reproduzierbar miteinander verglichen werden.