Can OpenHermes 2.5 7B run on RTX A4000 16GB?

YES — Runs Great

C54Usable

Estimated from fit model

OpenHermes 2.5 7B needs ~9.0 GB VRAM. RTX A4000 16GB has 16.0 GB. With Q4_K_M quantization, expect ~73 tok/s.

Runtime: OllamaCapacity: RoomyBandwidth: LowStack: BasicBottleneck: 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) — 9.0 GB, 79.0 tok/s, Runs well

9.0 GB required16.0 GB available

56% VRAM used

Fit status

Runs well

Decode

79.0 tok/s

TTFT

2452 ms

Safe context

Memory

9.0 GB / 16.0 GB

Memory breakdown

Weights4.3 GB

KV Cache2.0 GB

Runtime1.2 GB

Headroom1.6 GB

See how fast it feels

See how fast it feelsOpenHermes 2.5 7B on RTX A4000 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: 79.0 tok/s decode · 2.5s TTFT (warm) · 197 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

No major red flags

This recommendation has enough memory headroom and acceptable estimated speed for the selected workload.

Best improvement path

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs well	79.0 tok/s	1338 ms	8K
Coding	C	Runs well	73.4 tok/s	2636 ms	8K
Agentic Coding	B	Runs well	79.0 tok/s	3567 ms	8K
Reasoning	C	Runs well	79.0 tok/s	2898 ms	8K
RAG	B	Runs well	79.0 tok/s	4458 ms	8K

Quantization options

How OpenHermes 2.5 7B (7B params) fits at each quantization level on RTX A4000 16GB (16.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.7 GB	Low	C48
Q3_K_S	3	3.4 GB	Low	C48
NVFP4	4

Get started

Copy-paste commands to run OpenHermes 2.5 7B on your machine.

Run

ollama run openhermes

Frequently asked questions

Can RTX A4000 16GB run OpenHermes 2.5 7B?

Yes, RTX A4000 16GB can run OpenHermes 2.5 7B with a C grade (Runs well). Expected decode speed: 73.4 tok/s.

How much VRAM does OpenHermes 2.5 7B need?

OpenHermes 2.5 7B (7B parameters) requires approximately 9.0 GB of memory with Q4_K_M quantization.

What is the best quantization for OpenHermes 2.5 7B?

The recommended quantization for OpenHermes 2.5 7B is Q4_K_M, which balances quality and memory efficiency.

What speed will OpenHermes 2.5 7B run at on RTX A4000 16GB?

On RTX A4000 16GB, OpenHermes 2.5 7B achieves approximately 73.4 tokens per second decode speed with a time-to-first-token of 2636ms using Q4_K_M quantization.

Can RTX A4000 16GB run OpenHermes 2.5 7B for coding?

For coding workloads, OpenHermes 2.5 7B on RTX A4000 16GB receives a C grade with 73.4 tok/s and 8K context.

What context window can OpenHermes 2.5 7B use on RTX A4000 16GB?

On RTX A4000 16GB, OpenHermes 2.5 7B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

See all results for RTX A4000 16GB See all hardware for OpenHermes 2.5 7B

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