Mac Studio M5 Ultra vs NVIDIA DGX Spark: The $5,500 Local AI Bet
Two weeks ago I priced out what it would take to run a 200B-parameter model in my apartment in Dhaka without cloud tokens. The used-GPU route kept dead-ending: a card with enough VRAM either doesn't exist at consumer prices or melts my budget on electricity before it melts anything else. So when Apple announced the new Mac Studio with M5 Ultra yesterday, and NVIDIA's DGX Spark has been sitting on…
Mac Studio M5 Ultra and NVIDIA DGX Spark are two local AI machines that can cost roughly $5,500 each, making them comparable options for running AI models on a desktop. The two machines have significant differences, both in hardware and software. The Mac Studio features up to 512GB of unified memory and 1.2TB/s of memory bandwidth, while the DGX Spark offers 128GB of coherent LPDDR5x memory at 273GB/s.
The memory bandwidth difference is approximately 4.4x in favor of the Mac Studio. The Mac Studio can run significantly larger models, including up to 200 billion parameters with 4-bit quantization, while the DGX Spark is limited to 128GB of memory, supporting up to 200 billion parameters at 4-bit quantization as well.
In terms of software support, the DGX Spark offers a full NVIDIA AI stack, including CUDA, CUDA-X, TensorRT-LLM, NIM microservices, and NVIDIA's fine-tuning toolchain. This makes it more suitable for developers who work with CUDA and want to utilize a wide range of NVIDIA resources. The Mac Studio, on the other hand, relies on Apple's MLX ecosystem, which is still smaller and slower to receive support for new open models.
The Mac Studio also supports fine-tuning, but its tools are not as advanced as those offered by the DGX Spark.
Considering price, the DGX Spark is priced at $4,699, with the full CUDA stack included, and it has been available for purchase since earlier this year. The Mac Studio, priced at $5,499 starting with the 96GB model, may have a higher price point, but its memory bandwidth advantage could translate to faster decoding speeds for large models.
Additionally, the Mac Studio's power draw is higher, but it is still within the range of a standard wall outlet, making it a more convenient option for most users. Ultimately, the choice between the Mac Studio M5 Ultra and NVIDIA DGX Spark depends on the user's specific needs, priorities, and budget.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
