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NVIDIA RTX 3060 12GB vs NVIDIA RTX 3080 Laptop 16GB for local LLMs

46 reports on the NVIDIA RTX 3060 12GB and 2 on the NVIDIA RTX 3080 Laptop 16GB

Which is faster for local LLMs?

Nobody has reported the same model at the same quant on both cards yet, so there's no measured head-to-head. The estimates below compare them on the models people run most.

NVIDIA RTX 3060 12GB
Memory
12GB
Memory bandwidth
360 GB/s
FP16 compute
51 TFLOPS
Reports
46
NVIDIA RTX 3080 Laptop 16GB
Memory
16GB
Memory bandwidth
not on record
FP16 compute
not on record
Reports
2

Estimated by the calculator

The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape.

ModelNVIDIA RTX 3060 12GBNVIDIA RTX 3080 Laptop 16GB
Qwen3.8 27B1.5 t/sQ8_0, layers on CPUno estimateQ2_K
Qwen3.8 125B · 6B activedoesn't fit at these settingsdoesn't fit at these settings
DeepSeek V4 Flash 284B · 13B activedoesn't fit at these settingsdoesn't fit at these settings
Qwen3.6 35B · 3B active13.1 t/sQ6_K, experts in RAMno estimateQ2_K
Qwen3.6 27B1.5 t/sQ8_0, layers on CPUno estimateQ2_K
Gemma 4 26B · 4B active58.8 t/sQ2_Kno estimateQ3_K_S

Change the context, RAM or model in the calculator: NVIDIA RTX 3060 12GB · NVIDIA RTX 3080 Laptop 16GB

Every report on each card, with its source: NVIDIA RTX 3060 12GB · NVIDIA RTX 3080 Laptop 16GB

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