Can NVIDIA RTX 4000 Ada run Llama 3.1 70B?

70B parameter LLM model on 20GB GDDR6

No — not enough VRAM
SpeedWill not load
QualityN/A

VRAM Requirements

Llama 3.1 70B is a 70B parameter model. At full precision (FP16), it requires 140GB of VRAM. Your NVIDIA RTX 4000 Ada only has 20GB — not enough even at maximum compression.

FP16 (Full Precision)140GB (need 120GB more)

Maximum quality, no quantization

Q8 (8-bit)70GB (need 50GB more)

Near-lossless, ~50% size reduction

Q4 (4-bit)40GB (need 20GB more)

Good quality, ~75% size reduction

Your GPU VRAM: 20GB GDDR6 at 360 GB/s bandwidth
Recommended system RAM: 40GB DDR5 (2x GPU VRAM minimum for model overflow)

NVIDIA RTX 4000 Ada Specs

VRAM20GB GDDR6
Memory Bandwidth360 GB/s
TDP130W
CUDA Cores6,144
Street Price~$1100
AI Rating7/10

About Llama 3.1 70B

Frontier-class open LLM. Q4 fits on dual 24GB GPUs or a single 48GB card.

Category: LLM · Parameters: 70B · CUDA required: No (runs via llama.cpp/GGUF)