Best GPU Servers for Fine-Tuning

What to look for

• →Fine-tuning a 7B model in full precision needs ~56 GB VRAM — a single A100 (80 GB) handles it
• →QLoRA / PEFT methods can cut VRAM to ~16–24 GB, making A40 and L40S viable
• →H100 finishes fine-tuning runs faster, but A100 at lower cost is often better economics
• →Multi-GPU is rarely needed for fine-tuning — single-node setups work for most models