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NVIDIA GeForce RTX 4090 24GB: what can it run for local AI?

If you searched for “what can rtx 4090 run”, this page gives a practical answer with transparent assumptions. We evaluate a curated set of open-source models using a default Q4_K_M profile so you can quickly see what fits and what needs a larger memory budget.

  • Memory type: Dedicated VRAM
  • Total memory: 24 GiB
  • Bandwidth: 1,008 GB/s
  • Planning hint: For MoE and multimodal systems, treat these numbers as first-pass planning values and keep extra memory headroom for framework overhead.

Model fit table on NVIDIA GeForce RTX 4090 24GB

Baseline assumption: each model uses its default context and batch with Q4_K_M quantization. Use individual model pages for deeper what-if analysis.

ModelEstimated totalVerdictRough tokens/sRecommended quant
Qwen 3.8 27B20.91 GiBFits44.15q5_k_m
Qwen 3.8 Flash Next 125B78.66 GiBDoes not fit198.68No fit
MiniMax H3 33B22.45 GiBFits36.12q4_k_m
Qwen Image 2.15.38 GiBFits170.3fp16
Kimi K31,823.65 GiBDoes not fit11.46No fit
GLM 5.3 (Flash)215.7 GiBDoes not fit66.23No fit
DeepSeek V4.1 Flash334.25 GiBDoes not fit74.5No fit
MiMo V2.6 Pro RL625.89 GiBDoes not fit28.38No fit
Bonsai 2 27B21.13 GiBFits43.57q5_k_m
Mistral 7B Instruct v0.35.83 GiBFits170.3fp16

Quick answer: what can NVIDIA GeForce RTX 4090 24GB?

NVIDIA GeForce RTX 4090 24GB can run 5 out of 10 tracked models at the default Q4_K_M profile. If a model does not fit, the table shows a lower quantization suggestion where possible.

For MoE and multimodal systems, treat these numbers as first-pass planning values and keep extra memory headroom for framework overhead.

FAQ

What can NVIDIA GeForce RTX 4090 24GB run in local AI workflows?

Use the baseline Q4_K_M table as a first-pass fit check. For bigger context windows or multimodal pipelines, reserve extra headroom.

Do these numbers include CPU/RAM offload options?

The table assumes in-memory baseline behavior. You can often load bigger models with partial CPU/RAM offload, usually with lower throughput.

How should Mac unified memory be interpreted here?

Unified memory is treated as a first-class target. Fit can improve with large memory pools, but responsiveness still depends on memory bandwidth and runtime kernels.

Source and verification

Hardware spec source: NVIDIA product page (fetched 2026-10-06).