Can HelpingAI2.5 5B i1 run on GTX 1080 8GB?

YES — Runs Great

B55Good

Estimated from fit model

HelpingAI2.5 5B i1 needs ~5.6 GB VRAM. GTX 1080 8GB has 8.0 GB. With Q4_K_M quantization, expect ~62 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) — 5.6 GB, 61.9 tok/s, Runs well

5.6 GB required8.0 GB available

70% VRAM used

Fit status

Runs well

Decode

61.9 tok/s

TTFT

3128 ms

Safe context

81K

Memory

5.6 GB / 8.0 GB

Memory breakdown

Weights3.1 GB

KV Cache0.6 GB

Runtime1.2 GB

Headroom0.8 GB

See how fast it feels

See how fast it feelsHelpingAI2.5 5B i1 on GTX 1080 8GB
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: 61.9 tok/s decode · 3.1s TTFT (warm) · 155 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

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

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	C	Runs well	61.9 tok/s	1706 ms	81K
Coding	B	Runs well	61.9 tok/s	3128 ms	81K
Agentic Coding	B	Runs well	61.9 tok/s	4549 ms	81K
Reasoning	B	Runs well	61.9 tok/s	3696 ms	81K
RAG	B	Runs well	61.9 tok/s	5686 ms	81K

Quantization options

How HelpingAI2.5 5B i1 (5B params) fits at each quantization level on GTX 1080 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.0 GB	Low	C51
Q3_K_S	3	2.5 GB	Low	C52
NVFP4	4	2.8 GB	Medium	C53
Q4_K_M	4	3.1 GB	Medium	C53
Q5_K_M	5	3.6 GB	High	C53
Q6_K	6	4.1 GB	High	C53
Q8_0Best for your GPU	8	5.4 GB	Very High	C52
F16	16	10.3 GB	Maximum	F0

Get started

Copy-paste commands to run HelpingAI2.5 5B i1 on your machine.

Run

lms load hf-mradermacher--helpingai2-5-5b-i1-gguf && lms server start

Frequently asked questions

Can GTX 1080 8GB run HelpingAI2.5 5B i1?

Yes, GTX 1080 8GB can run HelpingAI2.5 5B i1 with a B grade (Runs well). Expected decode speed: 61.9 tok/s.

How much VRAM does HelpingAI2.5 5B i1 need?

HelpingAI2.5 5B i1 (5B parameters) requires approximately 5.6 GB of memory with Q4_K_M quantization.

What is the best quantization for HelpingAI2.5 5B i1?

The recommended quantization for HelpingAI2.5 5B i1 is Q4_K_M, which balances quality and memory efficiency.

What speed will HelpingAI2.5 5B i1 run at on GTX 1080 8GB?

On GTX 1080 8GB, HelpingAI2.5 5B i1 achieves approximately 61.9 tokens per second decode speed with a time-to-first-token of 3128ms using Q4_K_M quantization.

Can GTX 1080 8GB run HelpingAI2.5 5B i1 for coding?

For coding workloads, HelpingAI2.5 5B i1 on GTX 1080 8GB receives a B grade with 61.9 tok/s and 81K context.

What context window can HelpingAI2.5 5B i1 use on GTX 1080 8GB?

On GTX 1080 8GB, HelpingAI2.5 5B i1 can safely use up to 81K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for GTX 1080 8GB See all hardware for HelpingAI2.5 5B i1

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<iframe src="https://willitrunai.com/embed/hf-mradermacher--helpingai2-5-5b-i1-gguf-on-gtx-1080-8gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview:

Workload

Grade

Fit

Decode

TTFT

Context

Chat

Runs well

61.9 tok/s

1706 ms

81K

Coding

Runs well

61.9 tok/s

3128 ms

81K

Agentic Coding

Runs well

61.9 tok/s

4549 ms

81K

Reasoning

Runs well

61.9 tok/s

3696 ms

81K

RAG

Runs well

61.9 tok/s

5686 ms

81K

Quantization options

How HelpingAI2.5 5B i1 (5B params) fits at each quantization level on GTX 1080 8GB (8.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	2.0 GB	Low	C51
Q3_K_S	3	2.5 GB	Low	C52
NVFP4	4	2.8 GB	Medium	C53
Q4_K_M	4	3.1 GB	Medium	C53
Q5_K_M	5	3.6 GB	High	C53
Q6_K	6	4.1 GB	High	C53
Q8_0Best for your GPU	8	5.4 GB	Very High	C52
F16	16	10.3 GB	Maximum	F0

Frequently asked questions

Can GTX 1080 8GB run HelpingAI2.5 5B i1?

Yes, GTX 1080 8GB can run HelpingAI2.5 5B i1 with a B grade (Runs well). Expected decode speed: 61.9 tok/s.

How much VRAM does HelpingAI2.5 5B i1 need?

HelpingAI2.5 5B i1 (5B parameters) requires approximately 5.6 GB of memory with Q4_K_M quantization.

What is the best quantization for HelpingAI2.5 5B i1?

The recommended quantization for HelpingAI2.5 5B i1 is Q4_K_M, which balances quality and memory efficiency.

What speed will HelpingAI2.5 5B i1 run at on GTX 1080 8GB?

On GTX 1080 8GB, HelpingAI2.5 5B i1 achieves approximately 61.9 tokens per second decode speed with a time-to-first-token of 3128ms using Q4_K_M quantization.

Can GTX 1080 8GB run HelpingAI2.5 5B i1 for coding?

For coding workloads, HelpingAI2.5 5B i1 on GTX 1080 8GB receives a B grade with 61.9 tok/s and 81K context.

What context window can HelpingAI2.5 5B i1 use on GTX 1080 8GB?

On GTX 1080 8GB, HelpingAI2.5 5B i1 can safely use up to 81K tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.