Can CogVLM2 19B run on NVIDIA T4 16GB?

YES — With Offload

A81Great

○Estimated from fit model

CogVLM2 19B needs ~16.5 GB VRAM. NVIDIA T4 16GB has 16.0 GB. With Q4_K_M quantization, expect ~13 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: LowStack: StandardBottleneck: Balanced

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 16.5 GB, 13.1 tok/s, Runs with offload (needs ~0.4 GB host RAM)

16.5 GB required16.0 GB available

103% VRAM needed

0.5 GB over capacity — needs offload or smaller quantization

Fit status

Runs with offload (needs ~0.4 GB host RAM)

Decode

13.1 tok/s

TTFT

14781 ms

Safe context

Memory

16.5 GB / 16.0 GB

Memory breakdown

Weights11.6 GB

KV Cache2.4 GB

Runtime0.9 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsCogVLM2 19B on NVIDIA T4 16GB
1st promptCold start — includes initialization
>What is local AI inference?
Local AI inference means running an AI language model directly on your own hardware — your laptop, desktop, or server — instead of sending requests to a remote cloud API.

When you run inference locally the model weights are loaded into your GPU or unified memory. Each token you generate requires reading those weights from memory, so memory bandwidth is the main bottleneck for decode speed.

Key benefits of running locally:
 - Full privacy: your prompts never leave your machine
 - No per-token cost or rate limits
 - Works offline once the model is downloaded
 - Latency depends only on your hardware
2nd promptWarm — model ready, no init overhead
>How much VRAM do I need?
It depends on the model size and quantization level. A rough rule of thumb:

 Model size Q4 (4-bit) Q8 (8-bit) FP16
 7B params ~4.3 GB ~7.5 GB ~14 GB
 13B params ~7.9 GB ~13.9 GB ~26 GB
 70B params ~42.7 GB ~74.9 GB ~140 GB

Most people use 4-bit quantization (Q4_K_M) which gives 90-95% of full quality at a fraction of the memory. A 24 GB GPU can comfortably run most 7B-13B models.
Estimated: 13.1 tok/s decode · 14.8s TTFT (warm) · 33 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Older PCIe generation

PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.

Best improvement path

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	A	Runs with offload	19.3 tok/s	5474 ms	8K
Coding	A	Runs with offload (needs ~0.4 GB host RAM)	13.1 tok/s	14781 ms	8K
Agentic Coding	B	Very compromised (needs ~1.8 GB host RAM)	9.7 tok/s	29094 ms	8K
Reasoning	A	Runs with offload (needs ~0.4 GB host RAM)	13.1 tok/s	17469 ms	8K
RAG	B	Very compromised (needs ~1.8 GB host RAM)	9.7 tok/s	36367 ms	8K

Quantization options

How CogVLM2 19B (19B params) fits at each quantization level on NVIDIA T4 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	7.4 GB	Low	A85
Q3_K_S	3	9.3 GB	Low	A84
NVFP4	4	10.6 GB	Medium	A84
Q4_K_MBest for your GPU	4	11.6 GB	Medium	A84
Q5_K_M	5	13.7 GB	High	F0
Q6_K	6	15.6 GB	High	F0
Q8_0	8	20.3 GB	Very High	F0
F16	16	38.9 GB	Maximum	F0

Get started

Copy-paste commands to run CogVLM2 19B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
 --hf-repo "THUDM/cogvlm2-llama3-chat-19B" \
 --hf-file "cogvlm2-llama3-chat-19B-Q4_K_M.gguf" \
 -c 4096 -ngl 99

Your hardware

More models your NVIDIA T4 16GB can run

Model	Params	Grade	Decode	Capabilities
👁 OpenAI GPT-OSS 20B	21B	A	23.2 tok/s
👁 Mistral Codestral 2 25.08	22B	A	8 tok/s

Frequently asked questions

See all results for NVIDIA T4 16GB See all hardware for CogVLM2 19B

URL: https://willitrunai.com/can-run/cogvlm2-19b-on-t4-16gb