Side-by-side simulation · recommended settings

NVIDIA DGX Spark vs Mac Studio 128GB Local LLM Comparison

If you need a CUDA development environment and the NVIDIA ecosystem, DGX Spark is the right choice, and if a quiet finished product and MLX usability are important, Mac Studio is the right choice.

Choose devices and a model

Comparison mode
Expand comparison settings

Same 117output tokens. Only evidence-qualified acceleration is selected automatically; runtime formats are shown on each device.

Left

Ready

DGX Spark 128GB

First token2.7 to 4.9 seconds
Prefill839 ~ 1,535 tok/s
Decode16.7 ~ 23.4 tok/s

Press Start above to generate the same answer on both devices.

llama.cpp · Q4_K_M0.0s · 0/117

Right

Ready

Studio M4 Max 128GB

First token4.4 ~ 8.6 s
Prefill479 ~ 936 tok/s
Decode34.2 ~ 48.1 tok/s

Press Start above to generate the same answer on both devices.

MLX 4-bit0.0s · 0/117

With these settings, Studio M4 Max 128GB finishes the full answer About 1.0× faster.

Compare from input processing to completion of 117 token response.

Which one fits my needs?

Answer completion

Studio M4 Max 128GB

At the estimate midpoint, it finishes the same answer about 1.0× faster.

Prompt processing

DGX Spark 128GB

The estimated input-processing midpoint is higher at 1,187 tok/s.

Image and video generation

Check the media model

LLM speed does not tell you media-generation performance. Choose the image or video model and resolution separately.

Runtime

Settings for your hardware

llama.cpp · Q4_K_M / MLX 4-bit. When runtime paths differ, the speed gap also includes software and model-format differences.

Estimated power draw

Studio M4 Max 128GB

Estimated LLM power draw is lower at about 130 W. Noise and physical size need a separate check.

Local pricing

While Studio M4 Max 128GB is about 157 × KRW 10,000 cheaper, this model's response is also faster.

Before choosing hardware

MeasureDGX Spark 128GBStudio M4 Max 128GB
Available fast memory116GB114GB
Memory bandwidth273GB/s546GB/s
Estimated total time9.8 s9.4 s
Estimated sustained LLM loadabout 190Wabout 130W
Korean price range (KRW)952–1,030 × KRW 10,000780–888 × KRW 10,000
DGX Spark 128GB details (Korean)
Studio M4 Max 128GB details (Korean)

Estimated ranges for one user. Multi-GPU and multi-device results depend on the runtime and interconnect.