NVIDIA RTX 3090 Ti

GPU

NVIDIA Ampere (GA102): 24 GB GDDR6X on a 384-bit bus, 1008 GB/s of memory bandwidth, 450 W board power. Memory bandwidth matches the RTX 4090's, at higher power and lower compute.

5

Run records

2

Models covered

2

Frameworks covered

L0 Self-reported × 5

Evidence mix

Typical measured performance

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

  1. llama.cpp · IQ2_XS Decode 3.1 · Prefill 23.3 ·
  2. llama.cpp · IQ3_S Decode 2.5 · Prefill 18.8 ·
  3. vLLM · IQ2_XS Decode 3.3 · Prefill 24.8 ·
  4. vLLM · IQ3_S Decode 2.8 · Prefill 21 ·
  5. llama.cpp · Q5_K_S Decode 50.84 · Prefill 1376.9 ·

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
24 GB
Memory bandwidth
1008 GB/s
TDP
450 W
Release date
2022-03-29

Run records

5 configurations

ModelFrameworkQuantizationDecodeGen timeSamples
DeepSeek-V4.1-Flashllama.cppIQ2_XS3.1 tok/s—1
DeepSeek-V4.1-Flashllama.cppIQ3_S2.5 tok/s—1
DeepSeek-V4.1-FlashvLLMIQ2_XS3.3 tok/s—1
DeepSeek-V4.1-FlashvLLMIQ3_S2.8 tok/s—1
Qwen3.6-27Bllama.cppQ5_K_S50.8 tok/s—1