Best Local LLMs You Can Run on a Single 24GB GPU in 2026: Qwen, Gemma, Mistral, DeepSeek Compared
A single 24GB card is the practical floor for serious local inference. It is enough for genuinely capable models, and small enough to sit on one GPU. An RTX 3090 or RTX 4090 both land in this tier. The card you own matters less than the models you pick for it. The old hobbyist move was to squeeze the biggest 70B quant onto the card. That advice is now outdated. The stronger 2026 strategy uses modern 20B–35B-class models that fit cleanly. These leave room for context, and still respond fast enough for coding, chat, and agents. This guide covers the models that actually fit, why each is worth running, and how 24GB gets spent. How 24GB of VRAM actually gets spent Three things consume memory during inference. Getting the split right decides whether a model fits. The first is model weights . Their size depends on parameter count and quantization. At Q4_K_M, a common home-inference default, each parameter costs roughly 0.58 bytes. A 32B model therefore needs about 18–20GB ...
