Can Titan X Pascal 12GB run Qwen2.5-14B-Instruct?

NVIDIA · 12 GB GDDR5X · 480 GB/s bandwidth · Alibaba · 14.8B · model ctx up to 128K

CUDA

Partly — Qwen2.5-14B-Instruct at Q4 fits the Titan X Pascal 12GB (12 GB GDDR5X) at 4K context (≈ 10.62 GB) but not at the default 8K (≈ 12.1 GB needed). Use a shorter context or partial offload. Decode at Q4/8K: ≈ 57.8 tok/s (estimated, batch 1). FP16 needs ≈ 33.56 GB — does not fit on this card. Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.

Fit & speed by quant and context

Quant	Context	VRAM needed	Fits?	tok/s (decode)
Q4	4K	10.62 GB	Yes	20.6 ± est.
Q4	8K default	12.1 GB	No	57.8 ± est.
Q4	32K	20.98 GB	No	19.2 ± est.
FP16	4K	32.08 GB	No	2.3 ± est.
FP16	8K default	33.56 GB	No	2.1 ± est.
FP16	32K	42.44 GB	No	1.3 ± est.

Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s means the model is far beyond this card (offload-only territory).

VRAM breakdown at 8K context

Quant	Weights	KV cache	Overhead	Total needed	Titan X Pascal 12GB VRAM
Q4	8.14 GB	2.96 GB	1 GB	12.1 GB	12 GB
FP16	29.6 GB	2.96 GB	1 GB	33.56 GB	12 GB

Other GPUs that run Qwen2.5-14B-Instruct

• B200 192GB SXM — ≈344.0 tok/s Q4 est.
• MI300X 192GB — ≈227.9 tok/s Q4 est.
• H200 141GB SXM5 — ≈206.4 tok/s Q4 est.
• RTX 5090 32GB — ≈145.0 tok/s Q4 measured
• H100 80GB SXM5 — ≈144.0 tok/s Q4 est.
• Gaudi 3 128GB — ≈140.9 tok/s Q4 est.
• A100 80GB SXM4 — ≈98.02 tok/s Q4 measured
• RTX 4090 24GB — ≈92.0 tok/s Q4 measured

All GPUs for Qwen2.5-14B-Instruct →

Other models for the Titan X Pascal 12GB

• MiniCPM5-1B — ≈282.8 tok/s Q4 est.
• Qwen3.5-2B — ≈152.7 tok/s Q4 est.
• DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx — ≈132.8 tok/s Q4 est.
• Llama-3.2-3B-Instruct — ≈95.5 tok/s Q4 est.
• Qwen3-4B-Instruct-2507 — ≈76.4 tok/s Q4 est.
• NVIDIA-Nemotron-3-Nano-4B-BF16 — ≈76.4 tok/s Q4 est.
• Qwen3-4B-Thinking-2507 — ≈76.4 tok/s Q4 est.
• gemma-4-E2B-it — ≈59.9 tok/s Q4 est.

All models on the Titan X Pascal 12GB →