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Apple M1 Max vs Apple M1 Ultra

The M1 Ultra delivers 2.0x the FP32 throughput of the M1 Max (21 vs 10 TFLOPS dense). The M1 Ultra also carries 64 GB more memory (128 GB vs 64 GB).

M1 Max: Apple M1, 2021 M1 Ultra: Apple M1, 2022
FP32 dense lead
2.0x
M1 Ultra: 21 vs 10 TFLOPS
Memory
64 vs 128 GB
64 GB more for the M1 Ultra
Bandwidth
400 GB/s vs 800 GB/s
M1 Ultra moves data faster
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Apple M1 Max vs Apple M1 Ultra

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Apple M1 Max

Full specs →

What is the Apple M1 Max?

The M1 Max is an APU from Apple on the Apple M1 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. M1 Max full specifications →

Can I rent the M1 Max in the cloud?

Flopper is not tracking any live rental listings for the M1 Max yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the M1 Max compare with other accelerators?

This page sets the M1 Max against the M1 Ultra. The M1 Max is the older generation of the two. Both are Apple parts, and both ship as a system-on-chip, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the M1 Max figures come from?

Apple published the M1 Max figures in marketing material rather than a datasheet, and Flopper has no independent confirmation of them. How Flopper verifies specifications →

Apple M1 Ultra

Leads on FP32 Full specs →

What is the Apple M1 Ultra?

The M1 Ultra is an APU from Apple on the Apple M1 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. M1 Ultra full specifications →

Can I rent the M1 Ultra in the cloud?

Flopper is not tracking any live rental listings for the M1 Ultra yet. The provider directory lists the clouds that rent comparable accelerators on demand. GPU cloud providers →

How does the M1 Ultra compare with other accelerators?

This page sets the M1 Ultra against the M1 Max. The M1 Ultra is the newer generation of the two. Both are Apple parts, and both ship as a system-on-chip, so they fit the same class of system. The compare tool builds the same comparison for any two parts in the catalogue. All GPU comparisons →

Where do the M1 Ultra figures come from?

Apple published the M1 Ultra figures in marketing material rather than a datasheet, and Flopper has no independent confirmation of them. How Flopper verifies specifications →

Specifications

M1 Max
M1 Ultra
Architecture
Apple M1Apple M1
Launch Year
20212022
Form Factor
SoCSoC
Memory
64 GB128 GB
Memory Bandwidth
400 GB/s800 GB/s
TDP
——
Process Node
5nm5nm

Performance (TFLOPS)

M1 Max
M1 Ultra
No verified data available No verified data available
10 TFLOPS 21 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
FP6
No verified data available No verified data available
No verified data available No verified data available
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 M1 Ultra is the newer part: Apple M1 (2022) against the M1 Max's Apple M1 (2021).

The M1 Ultra carries 64 GB more memory (128 GB against 64 GB), so larger models fit on one GPU before you shard. Bandwidth is 400 GB/s against 800 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, Sparsity and TFLOPS.

Frequently asked questions

Is the M1 Max faster than the M1 Ultra?

At FP32 precision the M1 Ultra reaches 21 TFLOPS dense against 10 TFLOPS for the M1 Max. The performance table on this page lists every published precision for both GPUs.

Which should you choose, the M1 Max or the M1 Ultra?

Choose the M1 Ultra for training and high-throughput inference: it has 2.0x the FP32 throughput of the M1 Max. It also carries 64 GB more memory, so larger models fit on one GPU before you shard.

Which has more memory, the M1 Max or the M1 Ultra?

The M1 Ultra carries 128 GB of memory versus 64 GB for the M1 Max. Memory bandwidth is 400 GB/s for the M1 Max and 800 GB/s for the M1 Ultra.

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