Can the RTX A6000 48GB Run Phi-4 14B?
Runs
Yes. Phi-4 14B at Q4_K_M is a 9.1 GB download (Hugging Face file listing for bartowski/phi-4-GGUF), and the RTX A6000 48GB has 48 GB of VRAM, leaving about 39 GB for the KV cache and runtime. Published runs put generation at a median of 52.6 tokens per second across 1 cited measurement. Fastest cited run: DatabaseMart.
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Published runs for Phi-4 14B on the RTX A6000 48GB
| Generation | Quant | Runtime | Context | Source | Date |
|---|---|---|---|---|---|
| 52.6 tok/s | q4_K_M | ollama | — | DatabaseMartlabelled "phi4:14b" | 2026-07-08 |
More about this pair
How much VRAM does Phi-4 14B need?
The Q4_K_M file is 9.1 GB. Add roughly 1.5 GB for the runtime and an ~8K-token context, so about 10.6 GB of VRAM holds it comfortably. Longer contexts grow the KV cache and need more.
What is the fastest Phi-4 14B can generate on the RTX A6000 48GB?
Generation reads every weight once per token, so the RTX A6000 48GB's 768 GB/s of memory bandwidth divided by the 9.1 GB file sets a ceiling near 85 tokens per second. Real runs land below it; SpecPicks rejects any published figure above it.
Check another pair
Phi-4 14B on other GPUs
- RTX 4060 — Offload
- RTX 3060 Ti — Offload
- RTX 3060 12GB — Runs
- Intel Arc B580 — Runs
- RTX 4070 SUPER — Runs
- RTX 4060 Ti 16GB — Runs
- RTX 5060 Ti 16GB — Runs
- Intel Arc A770 16GB — Runs, 22.3 tok/s median
- Radeon RX 9070 XT — Runs
- RTX 4070 Ti SUPER — Runs
- RTX 4080 — Runs
- RTX 5070 Ti — Runs
- RTX 5080 — Runs
- RTX 3090 — Runs
- Radeon RX 7900 XTX — Runs
- RTX 4090 — Runs, 68.8 tok/s median
- RTX 5090 — Runs
- RTX PRO 6000 Blackwell 96GB — Runs
Other models on the RTX A6000 48GB
- Llama 3.2 1B — Runs
- Llama 3.2 3B — Runs
- Mistral 7B — Runs
- Qwen2.5 7B — Runs
- Llama 3.1 8B — Runs
- DeepSeek-R1-Distill-Llama 8B — Runs
- Qwen3 8B — Runs
- Gemma 2 9B — Runs
- Gemma 3 12B — Runs
- Qwen2.5 14B — Runs, 50.3 tok/s median
- DeepSeek-R1-Distill-Qwen 14B — Runs, 48.4 tok/s median
- Qwen3 14B — Runs, 40.7 tok/s median
- gpt-oss-20b — Runs
- Gemma 3 27B — Runs
- Gemma 2 27B — Runs, 31.6 tok/s median
- Qwen3 30B-A3B — Runs
- Qwen3 32B — Runs, 27.5 tok/s median
- Qwen2.5 32B — Runs, 26.1 tok/s median
- DeepSeek-R1-Distill-Qwen 32B — Runs, 26.2 tok/s median
- Llama 3.1 70B — Runs, 14.6 tok/s median
- Llama 3.3 70B — Runs, 13.6 tok/s median
- DeepSeek-R1-Distill-Llama 70B — Runs, 13.9 tok/s median
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 above, 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.