Nvidia RTX 4090

Description: Premium GPU with 24GB VRAM for local LLM inference and fine-tuning

Website: https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4090/

The Nvidia RTX 4090 is the best GPU for most users who want to run local LLMs. With 24GB VRAM, models up to 70 billion parameters can be run efficiently.

Specifications

• VRAM: 24GB GDDR6X
• CUDA Cores: 16,384
• Memory Bandwidth: 1 TB/s (crucial for LLM inference)
• Performance: Llama 3.1 70B at ~45 tokens/second (Q4 quantization)

Benefits

• Best single-GPU solution for local AI
• Can run 70B models with good speed
• 1 TB/s bandwidth = 2-3x faster than older GPUs
• Also suitable for fine-tuning

Successor

The RTX 5090 (32GB GDDR7) offers ~30% higher performance but is more expensive. For most users, the 4090 remains the best price-performance ratio.