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Can the RTX 3090 Run Qwen2.5 14B?

Runs

Yes. Qwen2.5 14B at Q4_K_M is a 9 GB download (Hugging Face file listing for bartowski/Qwen2.5-14B-Instruct-GGUF), and the RTX 3090 has 24 GB of VRAM, leaving about 15 GB for the KV cache and runtime. Published runs put generation at a median of 55.8 tokens per second across 3 cited measurements. Fastest cited run: LocalScore (Mozilla Builders).

Model file9 GBQ4_K_M
VRAM24 GBRTX 3090
Headroom15 GBafter weights
Median speed55.8 tok/s3 cited runs
Bandwidth ceiling~104 tok/s936 GB/s ÷ 8.99 GB

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Published runs for Qwen2.5 14B on the RTX 3090

GenerationQuantRuntimeContextSourceDate
56.1 tok/s q4_K_M llama.cpp — LocalScore (Mozilla Builders)labelled "qwen2.5:14b" 2025-06-01
55.8 tok/s q4_K_M ollama — LocalScore (Mozilla Builders)labelled "qwen2.5:14b" date not given
55 tok/s q4_K_M llama.cpp — kunalganglani.com LLM Benchmarkslabelled "qwen2.5:14b" 2024-12-01

More about this pair

How much VRAM does Qwen2.5 14B need?

The Q4_K_M file is 9 GB. Add roughly 1.5 GB for the runtime and an ~8K-token context, so about 10.5 GB of VRAM holds it comfortably. Longer contexts grow the KV cache and need more.

What speed does Qwen2.5 14B reach on the RTX 3090?

The fastest published run is 56.1 tokens per second (LocalScore (Mozilla Builders), q4_K_M, llama.cpp); the median of 3 cited runs is 55.8 tok/s. Generation reads every weight once per token, so the RTX 3090's 936 GB/s of memory bandwidth divided by the 8.99 GB file puts the theoretical ceiling near 104 tokens per second. That is an upper bound, not a speed estimate: kernel, launch and compute overhead keep real runs below it, and SpecPicks rejects any published figure above it.

Check another pair

See the full matrix → · All RTX 3090 benchmarks →

Qwen2.5 14B on other GPUs

Other models on the RTX 3090

How the checks work

The fit is the Q4_K_M file size against the card's VRAM, with 1.5 GB kept for the runtime and an ~8K context. A published run counts only if the pair fits, the run is Q4-class, its source does not call it an estimate, it is under the bandwidth ceiling (memory bandwidth ÷ GB read per token: the whole file for a dense model, only the active experts' weights for a mixture-of-experts model such as gpt-oss-20b or Qwen3 30B-A3B, which is why those can post figures above bandwidth ÷ file size), it is not slower than the same card on a model twice its size, a single run is not slower than the same card on a larger dense model, and it is not one figure pasted across many cards. The whole matrix is downloadable as a CSV under CC BY 4.0.

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This page is editorial synthesis based on publicly available information. No independent first-party benchmarking is reported.