Back to search results

DeepSeek-V4-Flash · UD-IQ2_XXS

2x NVIDIA RTX 509064GBllama.cpp b10236L0 Self-reported

This page aggregates 1 real-world runs of DeepSeek-V4-Flash (UD-IQ2_XXS) on 2x NVIDIA RTX 5090 with llama.cpp, contributed by 1 independent source platforms; metrics are averages of published measurements.

19.39 tok/s

Decode

Decode speed

692.41 tok/s

Prefill

Prefill speed

0.12 s

TTFT

Time to first token

51.17 GB

VRAM

VRAM usage

L0 Self-reported

1

Measured runs

1

Independent sources

GitHub

Source platforms

Today

Last verified

Performance

  1. llama.cpp · UD-IQ2_XXS (current)Decode 19.39 · Prefill 692.41 ·

Core figures

Decode (avg)
19.39 tok/s
Prefill (avg)
692.41 tok/s
TTFT (avg)
0.12 s
VRAM (avg)
51.17 GB
MTP acceptance rate
TTFB
— GB
Power draw
415 W

Configuration

Member-level fields are taken from the most recent run

Model
DeepSeek-V4-Flash
Quantization
UD-IQ2_XXS
Framework
llama.cpp
Version
b10236
Context length
204800 tokens
Batch size
4096
GPU layers
99

Hardware

Nominal and measured figures are shown side by side; whether it runs is the reader's call

GPU
2x NVIDIA RTX 5090
Nominal VRAM
64 GB
Measured VRAM (avg)
51.17 GB
OS
Ubuntu 24.04.4 LTS
Driver
610.43.03
CUDA
13.3
Power draw
415 W

Get started

Startup command

Command from the latest benchmark run
model=/models/deepseek-v4-flash-0731-gguf/UD-IQ2_XXS/DeepSeek-V4-Flash-0731-UD-IQ2_XXS-00001-of-00003.gguf offload=blk\.[0-9]+\.ffn_(gate|up|down)_exps\.weight=CPU threads=16 ubatch=4096 kv=q8_0 ngl=99 split=1,1

Sources & evidence

1 measured records in total, each traceable to its original source

  1. L0 Self-reportedGitHubOriginal link Verified on 2026-09-20

    b10236 · Ubuntu 24.04.4 LTS · CUDA 13.3 · 204800 ctx

    19.39 tok/s

    Decode

    692.41 tok/s

    Prefill

    0.12 s

    TTFT

    51.17 GB

    VRAM

    MTP

    415 W

    Power draw

    [bench] narrative run 1/5: 1000 tok in 52.7s (19.02 decode TPS, ttft 117ms) [bench] narrative run 2/5: 1000 tok in 52.9s (18.95 decode TPS, ttft 116ms) [bench] narrative run 3/5: 1000 tok in 52.2s (19.21 decode TPS, ttft 116ms) [bench] narrative run 4/5: 1000 tok in 49.9s (20.07 decode TPS, ttft 117ms) [bench] narrative run 5/5: 1000 tok in 50.9s (19.69 decode TPS, ttft 116ms)