4x NVIDIA RTX 3090

Desktop

Four RTX 3090s, 96 GB of VRAM in total. A multi-GPU rig is not a single memory pool, so bandwidth and TDP are left empty.

2

Run records

2

Models covered

2

Frameworks covered

L0 Self-reported × 2

Evidence mix

Typical measured performance

Published benchmark averages per model × framework × quantization on this hardware.

  1. vLLM · IQ2_XS Decode — · Prefill — ·
  2. llama.cpp · UD-IQ2_XXS Decode 35.68 · Prefill 420.73 ·

Fit check

Physics-based estimate from VRAM and memory bandwidth: pick a model to see which quantizations fit and the expected speed

Formula: tok/s = (bandwidth ÷ model size) × 0.55, adapted from llmfit; see run records for measured numbers

Key specs

Vendor
NVIDIA
Architecture
Ampere
VRAM
96 GB
Memory bandwidth
3600 GB/s

Run records

2 configurations

ModelFrameworkQuantizationDecodeGen timeSamples
GLM-5.3vLLMIQ2_XS——1
DeepSeek-V4-Flashllama.cppUD-IQ2_XXS35.7 tok/s—1