Compact AI systems and workstations
Apple Mac Studio (M3 Ultra, 2025)
Memory
512 GB
Bandwidth
819 GB/s
Power
480 W
- Maker
- Apple
- Model
- Mac Studio (M3 Ultra, 2025)
- Type
- Compact AI systems and workstations
- Memory
- 512 GB
- Memory type
- Unified memory
- Bandwidth
- 819 GB/s
- Power
- 480 W
- Form factor
- Desktop, 197 x 197 x 95 mm, 3.64 kg
- Interface
- 6x Thunderbolt 5 (4 rear, 2 front), 10Gb Ethernet, HDMI 2.1, Wi-Fi 6E
- Released
- 2025
Notes on these figures
512GB max per Apple launch PR (Mar 5, 2025); current Apple support tech specs page lists M3 Ultra configurable only to 256GB. 32-core Neural Engine; Apple publishes no TOPS. tdp_w = maximum continuous power. No M3 Ultra-specific US price in Apple sources checked (PR gives only Mac Studio overall from $1,999, which is M4 Max). Superseded by M5 Ultra (Aug 2026). Specs: https://support.apple.com/en-us/122211
Source: the maker's published specifications at apple.com. A missing figure means the maker does not publish it. Confirm current specifications with the maker or a dealer before you buy.
Comparable compact ai systems and workstations
| Model | Memory | Memory type | Bandwidth | NPU |
|---|---|---|---|---|
| Apple Mac Studio (M5 Ultra, 2026) | 512 GB | Unified memory | 1,200 GB/s | - |
| NVIDIA DGX Station (GB300 Grace Blackwell Ultra) | 748 GB | 252 GB HBM3e (GPU) + 496 GB LPDDR5X (CPU), coherent via NVLink-C2C | 7,100 GB/s | - |
| Framework Framework Desktop (AMD Ryzen AI Max+ 395) | 128 GB | LPDDR5x-8000 unified, 256-bit (up to 96GB assignable to GPU) | 256 GB/s | 50 TOPS |
| HP HP Z2 Mini G1a (AMD Ryzen AI Max+ PRO 395) | 128 GB | LPDDR5X-8533 ECC unified (transfer rates up to 8000 MT/s; up to 96GB assignable to GPU) | - | 50 TOPS |
| NVIDIA DGX Spark (GB10 Grace Blackwell) | 128 GB | LPDDR5x coherent unified, 256-bit | 273 GB/s | - |
| NVIDIA Jetson AGX Thor Developer Kit (T5000) | 128 GB | LPDDR5X, 256-bit | 273 GB/s | - |