LAB-012/2026-10-06TESTING

Qwen3.8 27B — RTX 5080 Coding Benchmark

I tested the 26.9B Qwen3.8 IQ3_S-MTP quant on a single RTX 5080 across three small front-end builds. Want to reproduce the run? Open the configured LLM inference planner to review the complete memory breakdown, inspect every runtime setting, and copy the ready-to-run llama.cpp command.

01 / Result

Local inference snapshot

Decode throughput is approximate.

Hardware: RTX 508016 GB VRAM
Decode: 93.33 t/sobserved
Model: 26.9BQwen3.8 ↗
Quant: IQ3_S-MTPQ3 GGUF ↗

02 / Configuration

Runtime settings

Model: ISTA-DASLab/Qwen3.8-27B-GSQ-RCO-GGUF ↗
Context: 64,000 tokens
Prompt / micro batch: 512 / 128
Batch: 1
KV cache: K 8-bit / V 8-bit · ratio 0.1667
GPU offload: All layers · discrete architecture
Attention: Flash attention on
MTP: On · draft max 3
Runtime: Bash · port 8080 · threads auto (0)
Generation: Medium reasoning · vision disabled

03 / Showcase

Generated projects

All three responses were saved as standalone HTML files and are rendered below without modification.

Output 01 / HTML / CSS

Midnight weather forecast

Tokens: 7,258
Time: 1m 8s
Decode: 105.41 t/s

Prompt

“Build a responsive weather forecast card as a single HTML file using only HTML and CSS. Use a cozy dark midnight theme with deep navy colors, soft gradients, rounded cards, subtle glass effects, and warm accent colors. Show the location, current temperature, weather condition, and a five-day forecast with simple CSS weather icons. Include gentle hover effects, support mobile screens, and use no JavaScript or external dependencies.”

Output 02 / Canvas / animation

20-second canvas timeline

Tokens: 6,811
Time: 1m 17s
Decode: 88.14 t/s

Prompt

“Build a 20-second looping animated scene in canvas: a sun rises, a chaaracter walks across the screen, clouds drift by, and it ends with a sudden rain animation - all choreographed on a timeline, no user interaction needed, using html css and js”

Output 03 / UI / interaction

Interactive calculator

Tokens: 7,725
Time: 1m 28s
Decode: 87.12 t/s

Prompt

“Build a responsive calculator as a single HTML file using HTML, CSS, and JavaScript. Use a dark technical-console aesthetic, support mouse and keyboard input, and include basic arithmetic, percent, sign toggle, backspace, clear, and error handling with no external dependencies.”