RunLLMLocal

Compare · GPUs

RTX 3080 vs RTX 3060 for local LLMs

It runs 16 of 39 models fully in memory, against 14 for the RTX 3080, thanks to 12 GB of VRAM versus 10 GB. The RTX 3080 is about 2.3x faster on the models both can hold, so it only wins if you stick to small models.

VerdictThe RTX 3060 is the better card for local AI

It runs 16 of 39 models fully in memory, against 14 for the RTX 3080, thanks to 12 GB of VRAM versus 10 GB. The RTX 3080 is about 2.3x faster on the models both can hold, so it only wins if you stick to small models.

RTX 3080NVIDIA
VRAM10 GB
Memory bandwidth760 GB/s
Models that fit fully14 / 39
Run with offload20
Largest that fitsQwen3.5 9B
RTX 3060NVIDIA
VRAM12 GB
Memory bandwidth360 GB/s
Models that fit fully16 / 39
Run with offload18
Largest that fitsMistral Nemo 12B

Every model at 8K context with the best quantization that fits. Offload assumes 32 GB of system RAM. Green marks the better result. Rows where the two differ come first.

ModelRTX 3080RTX 3060
Gemma 4 12BOffload~9.6 tok/sQ4_K_MRuns~33 tok/sQ4_K_M
Mistral Nemo 12BOffload~10 tok/sQ4_K_MRuns~33 tok/sQ4_K_M
Qwen3 0.6BRuns~780 tok/sQ8_0Runs~370 tok/sQ8_0
Gemma 3 1BRuns~470 tok/sQ8_0Runs~220 tok/sQ8_0
Llama 3.2 1BRuns~390 tok/sQ8_0Runs~180 tok/sQ8_0
Llama 3.2 3BRuns~150 tok/sQ8_0Runs~69 tok/sQ8_0
Phi-4 Mini 3.8BRuns~120 tok/sQ8_0Runs~58 tok/sQ8_0
Qwen3 4BRuns~120 tok/sQ8_0Runs~55 tok/sQ8_0
Gemma 3 4BRuns~110 tok/sQ8_0Runs~51 tok/sQ8_0
Qwen3.5 4BRuns~99 tok/sQ8_0Runs~47 tok/sQ8_0
Mistral 7B v0.3Runs~84 tok/sQ6_KRuns~31 tok/sQ8_0
Qwen2.5-Coder 7BRuns~79 tok/sQ6_KRuns~29 tok/sQ8_0
Llama 3.1 8BRuns~75 tok/sQ6_KRuns~28 tok/sQ8_0
DeepSeek-R1 Distill 8BRuns~75 tok/sQ6_KRuns~28 tok/sQ8_0
Qwen3 8BRuns~74 tok/sQ6_KRuns~27 tok/sQ8_0
Qwen3.5 9BRuns~74 tok/sQ5_K_MRuns~30 tok/sQ6_K
Gemma 3 12BOffload~9.4 tok/sQ4_K_MOffload~4.9 tok/sQ4_K_M
Phi-4 14BOffload~7.8 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
Qwen3 14BOffload~7.7 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
DeepSeek-R1 Distill 14BOffload~7.7 tok/sQ4_K_MOffload~4.0 tok/sQ4_K_M
gpt-oss 20BOffload~15 tok/sQ4_K_MOffload~8.6 tok/sQ4_K_M
Codestral 22BOffload~4.3 tok/sQ4_K_MOffload~2.7 tok/sQ4_K_M
Mistral Small 3 24BOffload~3.9 tok/sQ4_K_MOffload~2.5 tok/sQ4_K_M
Devstral Small 24BOffload~3.9 tok/sQ4_K_MOffload~2.5 tok/sQ4_K_M
Gemma 4 26B-A4B (MoE)Offload~13 tok/sQ4_K_MOffload~8.7 tok/sQ4_K_M
Gemma 3 27BOffload~3.1 tok/sQ4_K_MOffload~2.2 tok/sQ4_K_M
Qwen3.6 27BOffload~3.3 tok/sQ4_K_MOffload~2.2 tok/sQ4_K_M
Qwen3 30B-A3B (MoE)Offload~14 tok/sQ4_K_MOffload~10 tok/sQ4_K_M
Qwen3-Coder 30B-A3BOffload~14 tok/sQ4_K_MOffload~10 tok/sQ4_K_M
Gemma 4 31BOffload~2.7 tok/sQ4_K_MOffload~1.9 tok/sQ4_K_M
Qwen3 32BOffload~2.6 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
DeepSeek-R1 Distill 32BOffload~2.6 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
Qwen2.5-Coder 32BOffload~2.6 tok/sQ4_K_MOffload~1.8 tok/sQ4_K_M
Qwen3.6 35B-A3B (MoE)Offload~14 tok/sQ4_K_MOffload~11 tok/sQ4_K_M
Llama 3.3 70BWon’t fitWon’t fit
DeepSeek-R1 Distill 70BWon’t fitWon’t fit
Llama 4 Scout 109B-A17BWon’t fitWon’t fit
gpt-oss 120BWon’t fitWon’t fit
Qwen3 235B-A22B (MoE)Won’t fitWon’t fit

Which should you buy?

The RTX 3060 is the better card for local AI. It runs 16 of 39 models fully in memory, against 14 for the RTX 3080, thanks to 12 GB of VRAM versus 10 GB. The RTX 3080 is about 2.3x faster on the models both can hold, so it only wins if you stick to small models.

Only the RTX 3060 fits Mistral Nemo 12B and Gemma 4 12B fully in memory.

See every result on its own page: RTX 3080 and RTX 3060.

Questions

Is the RTX 3080 or the RTX 3060 better for running LLMs?

The RTX 3060 is the better card for local AI. It runs 16 of 39 models fully in memory, against 14 for the RTX 3080, thanks to 12 GB of VRAM versus 10 GB. The RTX 3080 is about 2.3x faster on the models both can hold, so it only wins if you stick to small models.

Which models can the RTX 3060 run that the RTX 3080 can't?

At 8K context, only the RTX 3060 holds Mistral Nemo 12B and Gemma 4 12B fully in VRAM.

Does the RTX 3080 or RTX 3060 need anything else to run local AI?

Only the software. Install Ollama or LM Studio, pick a model that fits in VRAM, and it runs on the GPU. 32 GB of system RAM helps when a model spills over, but that path is much slower.

More comparisons

Estimates from memory size and bandwidth at 8K context. Real speed varies with software, drivers and settings.

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