RTX 5090 32GBOpção econômica32 GB VRAM (+8)1792 GB/s (+784)
C
Adds memory headroom for longer context windows and future model growth.22.8 tok/s decodificação
Adds memory headroom for longer context windows and future model growth.
~$1,999 MSRP
Can EXAONE 4.0 1.2B run on RTX 4090 24GB?
YES — Runs Great
C40Usable
Estimated from fit model
EXAONE 4.0 1.2B needs ~4.2 GB VRAM. RTX 4090 24GB has 24.0 GB. With Q4_K_M quantization, expect ~19 tok/s.
Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: 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.
Select quantization to explore
Q4_K_M (Medium quality) — 4.2 GB, 19.2 tok/s, Runs well
4.2 GB required24.0 GB available
18% VRAM used
Fit status
Runs well
Decode
19.2 tok/s
TTFT
10083 ms
Safe context
2.3M
Memory
4.2 GB / 24.0 GB
Memory breakdown
Weights0.7 GB
KV Cache0.1 GB
Runtime0.9 GB
Headroom2.4 GB
See how fast it feels
See how fast it feelsEXAONE 4.0 1.2B on RTX 4090 24GB
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: 19.2 tok/s decode · 10.1s TTFT (warm) · 48 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 | 19.2 tok/s | 5500 ms | 1.6M |
| Coding | C | Runs well | 19.2 tok/s | 10083 ms | 2.3M |
| Agentic Coding | C | Runs well | 19.2 tok/s | 14667 ms | 2.3M |
| Reasoning | C | Runs well | 19.2 tok/s | 11917 ms | 2.3M |
| RAG | C | Runs well | 19.2 tok/s | 18333 ms | 2.3M |
Quantization options
How EXAONE 4.0 1.2B (1.2000000476837158B params) fits at each quantization level on RTX 4090 24GB (24.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 0.5 GB | Low | C43 |
Q3_K_S | 3 | 0.6 GB | Low | C43 |
NVFP4 | 4 | 0.7 GB | Medium | C43 |
Q4_K_M | 4 | 0.7 GB | Medium | C43 |
Q5_K_M | 5 | 0.9 GB | High | C43 |
Q6_K | 6 | 1.0 GB | High | C44 |
Q8_0 | 8 | 1.3 GB | Very High | C44 |
F16Best for your GPU | 16 | 2.5 GB | Maximum | C44 |
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 startOpções de upgrade
Hardware que roda bem EXAONE 4.0 1.2B
Frequently asked questions
Can RTX 4090 24GB run EXAONE 4.0 1.2B?
Yes, RTX 4090 24GB can run EXAONE 4.0 1.2B with a C grade (Runs well). Expected decode speed: 19.2 tok/s.
How much VRAM does EXAONE 4.0 1.2B need?
EXAONE 4.0 1.2B (1.2000000476837158B parameters) requires approximately 4.2 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 4090 24GB?
On RTX 4090 24GB, EXAONE 4.0 1.2B achieves approximately 19.2 tokens per second decode speed with a time-to-first-token of 10083ms using Q4_K_M quantization.
Can RTX 4090 24GB run EXAONE 4.0 1.2B for coding?
For coding workloads, EXAONE 4.0 1.2B on RTX 4090 24GB receives a C grade with 19.2 tok/s and 2.3M context.
What context window can EXAONE 4.0 1.2B use on RTX 4090 24GB?
On RTX 4090 24GB, EXAONE 4.0 1.2B can safely use up to 2.3M tokens of context. The model's official context limit is —, but available memory constrains the safe maximum.
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