Apple Mac Studio M4 Max vs Apple Mac Studio M3 Ultra for AI
A head-to-head comparison of specs, pricing, and real-world AI performance to help you pick the right hardware.
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Quick Verdict
Both are excellent choices for AI. The Apple Mac Studio M4 Max comes in at a lower price and offers strong performance. The Apple Mac Studio M3 Ultra justifies its premium with higher-end specs. Choose based on your budget and whether you need the extra headroom.
Apple Mac Studio M4 Max
$2,499+ — discontinued
The most powerful single-chip Mac for AI. Up to 128GB unified memory at up to 546 GB/s runs frontier MoE language models natively — silent, compact, and effortless for local LLM workflows with Ollama, MLX, and llama.cpp.
Apple Mac Studio M3 Ultra
$5,299 — discontinued
The unified-memory bandwidth king. The M3 Ultra runs at 819 GB/s — roughly 3× any Strix Halo or GB10 box — and at launch scaled to 512GB, enough to run DeepSeek R1 671B at 4-bit entirely in memory (~17–18 tok/s, under 200W). The catch as of September 2026: the 256GB and 512GB configs were pulled during the DRAM shortage, 96GB was the last config Apple sold, and Apple has now retired the M3 Ultra for the M5 Ultra — so this is a secondary-market buy. No CUDA — MLX/llama.cpp only.
Specs Comparison
| Spec | Apple Mac Studio M4 Max | Apple Mac Studio M3 Ultra |
|---|---|---|
| Price | $2,499+ — discontinued | $5,299 — discontinued |
| Chip | Apple M4 Max | Apple M3 Ultra (28-core CPU / 60-core GPU, up to 32/80) |
| CPU Cores | 16-core | — |
| GPU Cores | 40-core | — |
| Unified Memory | Up to 128GB | 96GB (256/512GB configs discontinued 2026) |
| Memory Bandwidth | 410 – 546 GB/s | 819 GB/s |
| Storage | 512GB – 8TB SSD | 1TB – 16TB SSD |
| Neural Engine | — | 32-core |
| Networking | — | 10GbE |
| I/O | — | 6× Thunderbolt 5, HDMI 2.1, SDXC |
Apple Mac Studio M4 Max
Pros
- +Up to 128GB at 546 GB/s — higher real bandwidth than any Strix Halo/GB10 box
- +Completely silent desktop operation
- +macOS + Ollama / MLX for effortless local AI
Cons
- -Discontinued by Apple in September 2026 — the M5 Max Mac Studio (from $2,499) replaced it
- -No CUDA — limited ML framework support
- -Premium Apple pricing
- -Not expandable after purchase
Apple Mac Studio M3 Ultra
Pros
- +819 GB/s — the highest-bandwidth unified-memory desktop you can buy
- +At launch, 512GB ran DeepSeek R1 671B Q4 in memory under 200W, silent
- +Thunderbolt 5 + macOS MLX-optimized stack
Cons
- -No CUDA — MLX / llama.cpp only; many AI tools assume NVIDIA
- -Retired by Apple in September 2026 (M5 Ultra replaced it) — secondary market only
- -Slow prefill/prompt-processing on long contexts vs GPU rigs
Where to Buy
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