llmrun

NVIDIA · Ada Lovelace · 16 GB VRAM tier

Best AI Models for NVIDIA GeForce RTX 4090 Laptop GPU (16 GB)

Runs 14B models well; 27–31B only just fits.

16 GB GDDR6576 GB/s79 TFLOPS FP16150 WAda Lovelace 2023

Laptop GPU is AD103 with 16 GB — NOT the desktop RTX 4090's 24 GB. Performance varies with the chassis power limit.

What LLMs can the RTX 4090 Laptop GPU run?

#ModelSpeedllmrun ScoreQuant · VRAM
1
Q4_K_M · 6.6 GB · 58.9 t/s
58.9 tok/sQ4_K_M · 6.6 GB
2
Qwen3.5 4BAlibaba
Q4_K_M · 3.4 GB · 115 t/s
115 tok/sQ4_K_M · 3.4 GB
3
Q4_K_M · 13.1 GB · 121 t/s
121 tok/sQ4_K_M · 13.1 GB
4
Phi 4Microsoft
Q4_K_M · 12.5 GB · 39.3 t/s
39.3 tok/sQ4_K_M · 12.5 GB
5
Q4_K_M · 9.0 GB · 45.5 t/s
45.5 tok/sQ4_K_M · 9.0 GB
See all 307 models on the RTX 4090 Laptop GPU →Best quant that fits · speeds estimated on this card

About the RTX 4090 Laptop GPU

The RTX 4090 Laptop GPU runs 14B models well. Ada Lovelace generation, released 2023.

GenerationAda Lovelacereleased 2023

RTX 4090 Laptop GPU strengths and weaknesses

Strengths

  • Runs 35B MoE models: Qwen3.6 35B A3B at 130 tok/s in 15.7 GB
  • Reads long prompts fast: A 4K-token prompt on Qwen3.5 9B starts answering in 2.2 s
  • Low power draw: 150 W board power; a 300 W PSU is enough

Weaknesses

  • 70B models don't fit: Llama 3.3 70B Instruct needs 51.3 GB at Q4 vs 16 GB here

Similar GPUs

Cards people weigh against the RTX 4090 Laptop GPU, each with the one reason it is worth a look.

RTX 4090 Laptop GPU tokens per second by model size

Output speed depends on memory bandwidth (576 GB/s). Grey rows need more than 16 GB.

  1. 9BQwen3.5 9B · Q4_K_M · 6.6 GB
    58.9tok/s
  2. 14BQwen3 14B · Q4_K_M · 11.9 GB
    39.4tok/s
  3. 27–31BQwen3.8 27B · Q3_K_L · 15.4 GB tight · Q3_K_L
    25.0tok/s
  4. 35B MoEQwen3.6 35B A3B · IQ3_S · 15.7 GB tight · IQ3_S
    130tok/s
  5. 70BLlama 3.3 70B Instruct · not at 4-bit
    needs 51.3 GB
  6. 120B MoEGPT OSS 120B · not at 4-bit
    needs 70.8 GB

Estimated speeds: Q4_K_M, 4K context, one user. How we estimate

All 1057 models on the RTX 4090 Laptop GPU

Featured only

Best quant that fits, ordered by llmrun Score. Fit grades how well it runs here, S best. How ranking works

LLM models compatible with NVIDIA GeForce RTX 4090 Laptop GPU — ranked by Score, recency and Fit
ModelVRAMScoreFit
Q4_K_M·76.1 t/s
6.8 GBS87, Runs great
Turkish Gemma 9B T1
Q4_K_M·58.0 t/s
7.7 GBA83, Runs well
Q4_K_M·370.7 t/s
1.0 GBS100, Runs great
BF16·170.2 t/s
3.6 GBS98, Runs great
Q4_K_M·216.4 t/s
3.6 GBS100, Runs great
Q4_K_M·129.1 t/s
4.2 GBS95, Runs great
Q4_K_M·36.7 t/s
11.9 GBA73, Runs well
Codeguard Jev Style 1.5B
Q4_K_M·292.5 t/s
1.7 GBS100, Runs great
H2ovl Mississippi 2B
BF16·79.0 t/s
6.5 GBS87, Runs great
ReaderLM v2
Q4_K_M·292.5 t/s
1.7 GBS100, Runs great
Q4_K_M·520.0 t/s
1.4 GBS100, Runs great
Q4_K_M·292.5 t/s
1.7 GBS100, Runs great
Q4_K_M·129.1 t/s
2.9 GBS95, Runs great
TIPO 500M Ft
Q4_K_M·462.2 t/s
0.8 GBS100, Runs great
Q4_K_M·292.5 t/s
1.7 GBS100, Runs great

RTX 4090 Laptop GPU specs, power and PSU

Specs

Architecture
Ada Lovelace
VRAM
16 GB GDDR6
Memory bandwidth
576.0 GB/s
FP16 (dense)
79.40 TFLOPS
CUDA cores
9,728
Tensor cores
304
Compute capability
8.9
TDP
150 W
Released
2023-02-08

RTX 4090 Laptop GPU FAQ

What is the largest model the RTX 4090 Laptop GPU can run?

Gemma 4 26B A4B IT (25.8B) is the largest at 4-bit or better: at Q4_K_S it uses 15.5 GB of 16 GB, and runs at about 117 tok/s. At 3-bit, a bigger model fits too: Gemma 2 27B IT (27.2B) at IQ3_M, 15.0 GB.

Can the RTX 4090 Laptop GPU run Qwen3.5 9B?

Yes. Qwen3.5 9B fits at Q4_K_M, using 6.6 GB of 16 GB, and it is the best model that runs well on this card.

Can the RTX 4090 Laptop GPU run 70B models?

No. Llama 3.3 70B Instruct needs 51.3 GB at Q4, more than the 16 GB on this card.

How many tokens per second does the RTX 4090 Laptop GPU give?

About 58.9 tok/s on Qwen3.5 9B at Q4_K_M, with the first token after 2.2 s on a 4K-token prompt.

What power supply does the RTX 4090 Laptop GPU need?

Plan a 300 W PSU (2× the 150 W TDP).

Is 16 GB enough for coding and agents?

Yes for coding: GPT OSS 20B, the best of the 2 coding models that fit, runs at about 121 tok/s. For agents, not yet: no agent-scored model fits in less than 96 GB.

Is renting cheaper than buying an RTX 4090 Laptop GPU?

An RTX 3090 Ti (24 GB) rents from $0.24/hr. With regular daily use, owning pays off.