llamaperf

M5 Max 128GB vs RTX 3080 20GB

For running local LLMs · 21 reports across 7 models

Side A
M5 Max 128GB
Vendor
apple
VRAM
128GB
Memory
Unified
Side B
RTX 3080 20GB
Vendor
nvidia
VRAM
20GB
Memory
Discrete

Highest reported generation speed by model family

These maxima come from different community setups. Model size, quantization, GPU count, offloading and concurrency may differ. They do not establish which GPU is faster for the same workload. Check the comparison conditions →

ModelM5 Max 128GBRTX 3080 20GB
Qwen3.8up to 2400B55.0n=557.5n=3
Qwen3.6up to 35B79.4n=4
DeepSeek V4 Flashup to 285Bn=117.5n=2
Gemma 4up to 31B7.5n=3
Qwen3.5up to 122Bn=1
StepFun 3.733.9n=1
Tencent-HY3up to 295B32.4n=1

More comparisons