Apple’s Mac Studio M3 Ultra 28-Core (Model ID Mac15,14, Model Number A3389, EMC 8859) is the most powerful configuration in the 2025 Mac Studio lineup. Released on March 5, 2025, this system delivers exceptional performance across creative, engineering, and AI-driven workflows.
At its heart is the Apple M3 Ultra SoC featuring 28 CPU cores (20 performance + 8 efficiency), a 60-core GPU, and a 32-core Neural Engine. It also includes a dedicated Media Engine with hardware acceleration for video encoding/decoding, including ProRes support.
Mac Studio M3 Ultra 28-Core (2025) Specifications
| Component | Details |
|---|---|
| Processor | Apple M3 Ultra – 28-Core CPU (~4.0 GHz), 60-Core GPU |
| Neural Engine | 32-Core |
| Media Engine | 2 decode, 4 encode, 4 ProRes engines |
| RAM (Unified) | 96 GB (upgradable to 256 GB / 512 GB at time of purchase) |
| Storage | 1 TB SSD (Removable but not user-accessible) |
| Display Support | Up to 8 displays (8 x 6K @ 60Hz or 4 x 8K @ 60Hz) |
| Wireless | Wi-Fi 6E, Bluetooth 5.3 |
| Ports – Front | 2x Thunderbolt 5, 1x SDXC (UHS-II) |
| Ports – Back | 4x Thunderbolt 5, 2x USB-A, 1x HDMI 2.1, 1x 10Gb Ethernet, 1x 3.5mm jack |
| Dimensions (inches) | 3.7 (H) x 7.7 (W) x 7.7 (D) |
| Weight | 8.0 lbs. (3.64 kg) |
| Preinstalled OS | macOS 15.3.2 (24D2082) |
| Form Factor | Mac Studio Cuboid |
| Price (US) | $3999 base (96 GB RAM, 1 TB SSD) |
Key Performance Highlights
- Creative Powerhouse: The 60-core GPU and 819 GB/s memory bandwidth make the Mac Studio M3 Ultra 28-Core ideal for 3D rendering, film editing, AI workflows, and AR/VR development.
- Massive RAM Options: Ships with 96 GB RAM, expandable to 256 GB or 512 GB at purchase time for large dataset processing and pro-level multitasking.
- Next-Gen I/O: Six Thunderbolt 5 ports, 10Gb Ethernet, and UHS-II SD card slot provide elite connectivity for pro users.
Expansion and Display Support
- Up to 8 Displays: Supports eight 6K displays or four 8K at full 60Hz refresh rate.
- 4K Refresh Rates: Supports 4K up to 144Hz (8 displays) or 240Hz (4 displays) for high-frame-rate video workflows.
