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Apple M5 Ultra vs NVIDIA DGX Spark

Side-by-side specifications, performance, and rental pricing for datacenter AI workloads.

M5: Apple M5, 2026 DGX Spark: Grace Blackwell, 2025
Memory
512 vs 128 GB
384 GB more for the M5
Bandwidth
1.2 TB/s vs 273 GB/s
M5 moves data faster
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Apple M5 Ultra vs NVIDIA DGX Spark

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Apple M5 Ultra

Full specs →

What is the Apple M5?

The M5 is an APU from Apple on the Apple M5 architecture, an processor that pairs CPU and GPU on one chip. It is a system-on-chip, so it is built into edge and embedded devices rather than sold as a card. M5 full specifications →

Can I rent the M5 in the cloud?

Flopper is not tracking any live rental listings for the M5 yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the M5 compare with other accelerators?

This page sets the M5 against the DGX Spark. The M5 is the newer generation of the two. This is a cross-vendor matchup, Apple against NVIDIA. Flopper also compares it head to head with the M3 Ultra and M5 Max, across every published precision, memory and power. M5 vs M3 Ultra →

Where do the M5 figures come from?

Apple published the M5 figures in marketing material rather than a datasheet, and Flopper has no independent confirmation of them. How Flopper verifies specifications →

NVIDIA DGX Spark

Full specs →

What is the NVIDIA DGX Spark?

The DGX Spark is an APU from NVIDIA on the Grace Blackwell architecture, an processor that pairs CPU and GPU on one chip. DGX Spark full specifications →

Can I rent the DGX Spark in the cloud?

Flopper is not tracking any live rental listings for the DGX Spark yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the DGX Spark compare with other accelerators?

This page sets the DGX Spark against the M5. The DGX Spark is the older generation of the two. This is a cross-vendor matchup, NVIDIA against Apple. Flopper also compares it head to head with the Ryzen AI Max+ 395 Radeon 8060S (Strix Halo) and Jetson AGX Thor T5000 128GB, across every published precision, memory and power. DGX Spark vs Ryzen AI Max+ 395 Radeon 8060S (Strix Halo) →

Where do the DGX Spark figures come from?

Every DGX Spark figure on this page traces to NVIDIA's own datasheet or specification table. How Flopper verifies specifications →

Specifications

M5
DGX Spark
Architecture
Apple M5Grace Blackwell
Launch Year
20262025
Form Factor
SoCDesktop Workstation
Memory
512 GB128 GB
Memory Bandwidth
1.2 TB/s273 GB/s
TDP
—140 W
Process Node
3nm4nm

Performance (TFLOPS)

M5
DGX Spark
No verified data available No verified data available
33 TFLOPS No verified data available
No verified data available No verified data available
No verified data available No verified data available
No verified data available No verified data available
No verified data available No verified data available
FP6
No verified data available No verified data available
No verified data available500 TFLOPS
1,000 TFLOPS sparse
No verified data available No verified data available

Figures are dense. Where a vendor publishes a figure it sits under the dense one and never decides a winner. Hover any precision for its definition, or read the GPU glossary.

FLOPS by Precision

What actually differs

The M5 is the newer part: Apple M5 (2026) against the DGX Spark's Grace Blackwell (2025).

The M5 carries 384 GB more memory (512 GB against 128 GB), so larger models fit on one GPU before you shard. Bandwidth is 1.2 TB/s against 273 GB/s, which sets the ceiling on decode speed.

Weight the FP8 and FP16 rows for LLM work and the FP64 row for HPC.

New to the terms? The glossary explains FP32, FP4, Sparsity and TFLOPS. For how the generations relate, see NVIDIA architectures explained.

Frequently asked questions

Which should you choose, the M5 or the DGX Spark?

Choose the M5 when the model has to fit on one GPU: it carries 384 GB more memory.

Which has more memory, the M5 or the DGX Spark?

The M5 carries 512 GB of memory versus 128 GB for the DGX Spark. Memory bandwidth is 1.2 TB/s for the M5 and 273 GB/s for the DGX Spark.

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