More
Best rig by budgetRent before you buySubmit a buildNewsletterFree datasetAdvertise
Submit build

Builds / 4x RTX 3090

4x RTX 3090: Qwen3.8 Flash-Next W4A16 on vLLM TP4, 109.5 tok/s prose (Tech2wild)

Last updated:

Source: github.com ↗More source: github.com ↗📏 How measured: reported by the original source; RigBase re-checked the numbers at that source
GPU(s)
4x RTX 3090
Amazon · eBay (used) · Newegg
VRAM / unified memory (GB)
96
CPU
not stated
Motherboard
not stated
RAM
not stated
PSU
not stated
Other
4× RTX 3090 (Ampere)
Reported total cost
not stated
Power
not stated

Measured speed (generation tokens/sec)

ModelQuantEnginetok/sPrompt processing (tok/s)Details
Qwen3.8 Flash-NextW4A16 + draftvLLM TP4, 1 stream109.5not stated⚡ spec-decode (speculative)context: 262K📏 Single-stream prose decode as published in Tech2wild's recipe README (real-prompt prose (not counting peak)).
Qwen3.8 Flash-NextW4A16 + draftvLLM TP4, 1 stream145.8not stated⚡ spec-decode (speculative)context: 262K📏 Single-stream code decode as published in the same Tech2wild README.

Numbers by Tech2wild (tonyd2wild); real-prompt prose (not counting peak). RigBase read the GitHub README on 2026-10-28 and checked each figure against the text. RigBase did not re-run it. Speculative decoding (MTP/DFlash/DSpark) inflates predictable text; these rows prefer prose/code over counting peaks. Recipe license: Apache-2.0.

Source: https://github.com/tonyd2wild/Qwen38-Flash-Next-4x3090
https://github.com/tonyd2wild/Qwen38-Flash-Next-4x3090/blob/main/README.md

Blank fields = not stated in the source. We never estimate build data; GPU street prices above are separately sourced and dated.

Embed this result

Copy into a README or blog. Links back to this build. See badge docs (CC BY 4.0 attribution). The SVG does not invent speeds — numbers stay on the build page.

Markdown

[![Measured on RigBase](https://getrigbase.com/badge/tony-4x-rtx-3090-qwen38-flash-next-4x3090.svg)](https://getrigbase.com/builds/tony-4x-rtx-3090-qwen38-flash-next-4x3090/)

HTML

<a href="https://getrigbase.com/builds/tony-4x-rtx-3090-qwen38-flash-next-4x3090/" rel="noopener"><img src="https://getrigbase.com/badge/tony-4x-rtx-3090-qwen38-flash-next-4x3090.svg" alt="Measured on RigBase" height="20"/></a>

Preview: Measured on RigBase · How to use

Rent before you buy: try this model on a cloud GPU for a few dollars first: Runpod (referral link; sign up with Google to get the new-user bonus)

Quick answers: Can 4x RTX 3090 run Qwen3.8 Flash-Next?