Will It Run AI

Can EXAONE 4.0 1.2B run on RTX 5090 32GB?

YES — Runs Great

C41Usable
Estimated from fit model

EXAONE 4.0 1.2B needs ~5.0 GB VRAM. RTX 5090 32GB has 32.0 GB. With Q4_K_M quantization, expect ~23 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced
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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) 5.0 GB, 22.8 tok/s, Runs well
5.0 GB required32.0 GB available
16% VRAM used

Fit status

Runs well

Decode

22.8 tok/s

TTFT

8491 ms

Safe context

3.1M

Memory

5.0 GB / 32.0 GB

Memory breakdown

Weights0.7 GB
KV Cache0.1 GB
Runtime0.9 GB
Headroom3.2 GB

See how fast it feels

See how fast it feelsEXAONE 4.0 1.2B on RTX 5090 32GB
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: 22.8 tok/s decode · 8.5s TTFT (warm) · 57 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

WorkloadGradeFitDecodeTTFTContext
ChatCRuns well22.8 tok/s4632 ms2.2M
CodingCRuns well22.8 tok/s8491 ms3.1M
Agentic CodingCRuns well22.8 tok/s12351 ms3.1M
ReasoningCRuns well22.8 tok/s10035 ms3.1M
RAGCRuns well22.8 tok/s15439 ms3.1M

Quantization options

How EXAONE 4.0 1.2B (1.2000000476837158B params) fits at each quantization level on RTX 5090 32GB (32.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
0.5 GB
LowC42
Q3_K_S
3
0.6 GB
LowC42
NVFP4
4
0.7 GB
MediumC42
Q4_K_M
4
0.7 GB
MediumC42
Q5_K_M
5
0.9 GB
HighC42
Q6_K
6
1.0 GB
HighC42
Q8_0
8
1.3 GB
Very HighC42
F16Best for your GPU
16
2.5 GB
MaximumC43

Get started

Copy-paste commands to run EXAONE 4.0 1.2B on your machine.

Run

lms load hf-lgai-exaone--exaone-4-0-1-2b-gguf && lms server start

Opciones de mejora

Hardware que ejecuta bien EXAONE 4.0 1.2B

Frequently asked questions

Can RTX 5090 32GB run EXAONE 4.0 1.2B?

Yes, RTX 5090 32GB can run EXAONE 4.0 1.2B with a C grade (Runs well). Expected decode speed: 22.8 tok/s.

How much VRAM does EXAONE 4.0 1.2B need?

EXAONE 4.0 1.2B (1.2000000476837158B parameters) requires approximately 5.0 GB of memory with Q4_K_M quantization.

What is the best quantization for EXAONE 4.0 1.2B?

The recommended quantization for EXAONE 4.0 1.2B is Q4_K_M, which balances quality and memory efficiency.

What speed will EXAONE 4.0 1.2B run at on RTX 5090 32GB?

On RTX 5090 32GB, EXAONE 4.0 1.2B achieves approximately 22.8 tokens per second decode speed with a time-to-first-token of 8491ms using Q4_K_M quantization.

Can RTX 5090 32GB run EXAONE 4.0 1.2B for coding?

For coding workloads, EXAONE 4.0 1.2B on RTX 5090 32GB receives a C grade with 22.8 tok/s and 3.1M context.

What context window can EXAONE 4.0 1.2B use on RTX 5090 32GB?

On RTX 5090 32GB, EXAONE 4.0 1.2B can safely use up to 3.1M tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.

See all results for RTX 5090 32GBSee all hardware for EXAONE 4.0 1.2B
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