ApX logoApX logo

NVIDIA RTX 4080 SUPER (16GB)

The NVIDIA RTX 4080 SUPER (16GB) features 16 GB of dedicated VRAM and 736 GB/s memory bandwidth, supporting CUDA and TensorRT-LLM runtimes for full-precision and quantized inference.

Memory

16 GB

Usable Memory Ceiling

16 GB

Bandwidth

736.3 GB/s

Max Inference Class

14B Models (Q4)

TDP

320W

VRAM Scaling by Context Length

Estimated memory requirements as context length increases. Curves crossing above the reference line indicate Out of Memory (OOM).

Gemma 3 270M (0.27B)ChatGLM-6B (6B)Gemma 3 12B (12B)Mixtral-8x7B-v0.1 (46.7B (7B active))

Precision:

Best Models to Run on NVIDIA RTX 4080 SUPER (16GB)

Inference throughput, memory compatibility, and generation speeds for open-weights LLMs on NVIDIA RTX 4080 SUPER (16GB).

Sort by:

Context:

KV Cache:

GPUs:

RankModelParametersPrecisionTPS (Approx.)TTFTCan Run

#33

Qwen 3.8 27B

27B

INT4

33 tok/s

~1.7s

#83

Qwen3.5-27B

27B

INT4

33 tok/s

~1.7s

#100

Phi-4 Reasoning Plus

14B

INT4

48 tok/s

~763 ms

#101

MiMo V2 Flash

15B (309B active)

INT4

3 tok/s

~17.0s

#108

Gemma 4 26B A4B

25.2B (3.8B active)

INT4

134 tok/s

~284 ms

#109

Gemma 4 12B

11.95B

INT4
Q8

54 tok/s

34 tok/s

~654 ms

~775 ms

#113

Qwen3.5-9B

9B

INT4
Q8

90 tok/s

57 tok/s

~493 ms

~499 ms

#118

K2 Horizon 7B

7B

INT4
Q8
FP16

108 tok/s

70 tok/s

35 tok/s

~387 ms

~392 ms

~471 ms

#128

NVIDIA Nemotron 3 Nano 30B-A3B

3.5B (30B active)

INT4
Q8
FP16

32 tok/s

19 tok/s

10 tok/s

~1.5s

~1.6s

~1.6s

#132

Qwen3.5-4B

4B

INT4
Q8
FP16

153 tok/s

106 tok/s

63 tok/s

~230 ms

~233 ms

~239 ms

#136

GPT-OSS 20B

21B (3.6B active)

INT4

66 tok/s

~295 ms

#146

Granite 4.2 8B

8B

INT4
Q8

99 tok/s

63 tok/s

~440 ms

~445 ms

#150

Gemma 4 E4B

8B

INT4
Q8

99 tok/s

63 tok/s

~440 ms

~445 ms

#158

GLM-4V

9B

INT4
Q8

67 tok/s

45 tok/s

~497 ms

~545 ms

#159

Gemma 3 27B

27B

INT4

33 tok/s

~1.7s

#160

Phi-4

14B

INT4
Q8

64 tok/s

35 tok/s

~757 ms

~899 ms

#169

OLMo 3 7B Think

7B

INT4
Q8

80 tok/s

58 tok/s

~390 ms

~395 ms

#172

DeepSeek-R1 14B

14B

INT4
Q8

66 tok/s

35 tok/s

~757 ms

~899 ms

#173

Ministral 3 14B

14B

INT4

48 tok/s

~763 ms

#177

Gemma 3 12B

12B

INT4
Q8

72 tok/s

42 tok/s

~652 ms

~716 ms

Inference Capacity

Maximum model parameter class runnable by weight precision.

Context:

4-bit

Q4

14B Models

8-bit

Q8

8B Models

16-bit

FP16

3B Models

Fine-Tuning Capacity

Hardware capacity for local training and adapter fine-tuning.

Context Length:

QLoRA

4-bit

14B Models

LoRA

16-bit

8B Models

Full Parameter Training

1B Models

Workload Recommendations

Guidance for optimal precision and operational ceilings on NVIDIA RTX 4080 SUPER (16GB).

Inference Sweet Spot

Optimal for 8B models across extended context (32k+). 14B models fit comfortably at Q4 precision with standard context.

Bandwidth & Speed Profile

With 736.3 GB/s aggregate bandwidth, batch size 1 inference operates in a memory-bandwidth bound regime. Generates approximately 164 tok/s on an 8B Q4 model and 19 tok/s on a 70B Q4 model.

Frequently Asked Questions