llamaperf

NVIDIA Jetson AGX Thor 128GB vs M4 Max 128GB for local LLMs

4 reports on the NVIDIA Jetson AGX Thor 128GB and 12 on the M4 Max 128GB

Which is faster for local LLMs?

On Qwen3.8 125B · 6B active at 4-bit, the NVIDIA Jetson AGX Thor 128GB runs at 36.7 tokens per second (one run) and the M4 Max 128GB at 57.4 (one run). Those are community reports whose engines and settings differ, so the gap is a rough sign, not a controlled measure of the two cards. Memory bandwidth, which caps how fast a card can write, is 2.0x higher on the M4 Max 128GB (273 GB/s on the NVIDIA Jetson AGX Thor 128GB, 546 on the M4 Max 128GB).

NVIDIA Jetson AGX Thor 128GB
Memory
128GB unified
Memory bandwidth
273 GB/s
FP16 compute
258.8 TFLOPS
Reports
4
M4 Max 128GB
Memory
128GB unified
Memory bandwidth
546 GB/s
FP16 compute
18.4 TFLOPS
Reports
12

Measured on both

Median tokens per second from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same quant level. Engines and context lengths can still differ between the runs. How to read these

ModelNVIDIA Jetson AGX Thor 128GBM4 Max 128GB
Qwen3.8 125B · 6B active4-bit36.7one run57.4one run

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. Where a model was also measured above, the measurement wins.

ModelNVIDIA Jetson AGX Thor 128GBM4 Max 128GB
Qwen3.8 125B · 6B active10.0 t/sQ6_K30.7 t/sQ5_K_S
Qwen3.8 27B2.8 t/sFP166.7 t/sFP16
DeepSeek V4 Flash 284B · 13B active26.5 t/sQ2_K48.3 t/sQ2_K
Qwen3.6 35B · 3B active10.0 t/sFP1621.2 t/sFP16
Qwen3.6 27B2.8 t/sFP166.7 t/sFP16
Gemma 4 26B · 4B active7.5 t/sFP1618.2 t/sFP16
DeepSeek V4.1 Flash 552B · 16B activedoesn't fit at these settingsdoesn't fit at these settings

Change the context, RAM or model in the calculator: NVIDIA Jetson AGX Thor 128GB · M4 Max 128GB

Every report on each card, with its source: NVIDIA Jetson AGX Thor 128GB · M4 Max 128GB

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