llamaperf

NVIDIA DGX Spark vs M5 Max 36GB for local LLMs

87 reports on the NVIDIA DGX Spark and 12 on the M5 Max 36GB

Which is faster for local LLMs?

On Qwen3.8 27B at 4-bit, the NVIDIA DGX Spark has generation speed not reported; prompt processing 899.9 tokens/s (one run); the M5 Max 36GB has 25.8 generation tokens/s (one run). Memory bandwidth, which caps how fast a card can write, is 1.7x higher on the M5 Max 36GB (273 GB/s on the NVIDIA DGX Spark, 461 on the M5 Max 36GB).

NVIDIA DGX Spark
Memory
128GB unified
Memory bandwidth
273 GB/s
FP16 compute
125 TFLOPS
Reports
87
M5 Max 36GB
Memory
36GB unified
Memory bandwidth
461 GB/s
FP16 compute
not on record
Reports
12

Measured on both

Generation and prompt processing speeds 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 bit class. Each side shows the engines and reported context behind its median. Context can mean a configured window or prompt depth, so these are community comparisons with differing settings. How to read these

ModelNVIDIA DGX SparkM5 Max 36GB
Qwen3.8 27B4-bit-0 runsPP 899.9 (one run)llama.cpp16K context25.8one runengine not statedcontext not stated

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 DGX SparkM5 Max 36GB
Qwen3.8 27B4.0 t/sFP1619.7 t/sQ5_K_M
Qwen3.8 125B · 6B active14.4 t/sQ6_Kdoesn't fit at these settings
Qwen3.6 35B · 3B active14.5 t/sFP1675.9 t/sQ4_K_M
DeepSeek V4 Flash 284B · 13B active38.3 t/sQ2_Kdoesn't fit at these settings
Qwen3.6 27B4.0 t/sFP1619.7 t/sQ5_K_M
Gemma 4 26B · 4B active10.8 t/sFP1650.2 t/sQ5_K_M
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 DGX Spark · M5 Max 36GB

Every report on each card, with its source: NVIDIA DGX Spark · M5 Max 36GB

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