Mac Studio (2025) · M3 Ultra · 96 GB / 1 TB
CPU index
300
×3.00 vs M1
GPU index
737
×7.37 vs M1
Memory
96
GB unified
Storage
1024
1 TB
Bandwidth
819
GB/s
This Mac Studio configuration uses the M3 Ultra (28-CPU/60-GPU) with 96 GB unified memory and 1 TB storage. On MacDiff its CPU index is 300 (×3.00 vs the entry-level M1 Air) and its GPU index is 737 (×7.37). The origin of the scale is the 2020 MacBook Air M1 at 100/100 — MacDiff’s own relative units, not Geekbench or Apple scores.
MacDiff lists 4 configurations of the Mac Studio. CPU indices on this model run 255–325 and GPU indices run 513–844. This page is one of 4 listed configs.
Family: Mac Studio. Released 2025. Apple date: 2025-03-12. Compare it with other Macs on the compare tool, or read how the index is built on the methodology page.
Configurations
| Chip | CPU / GPU | CPU | GPU | Mem | Bandwidth | Storage | From | |
|---|---|---|---|---|---|---|---|---|
| M3 Ultra (28-CPU/60-GPU)this page | 300 | 737 | 96 GB | 819 GB/s | 1 TB | $3999 | Compare | |
| M3 Ultra (32-CPU/80-GPU) | 325 | 844 | 96 GB | 819 GB/s | 1 TB | $4999 | Compare | |
| M4 Max (14-CPU/32-GPU) | 255 | 513 | 36 GB | 410 GB/s | 512 GB | $1999 | Compare | |
| M4 Max (16-CPU/40-GPU) | 293 | 623 | 48 GB | 546 GB/s | 512 GB | — | Compare |
Specifications
Apple published figures for this configuration. Not MacDiff scores.
Chassis
- Weight
- 3.64 kg
- Size
- 195.6 × 195.6 × 94 mm
Ports
- Thunderbolt
- 6× Thunderbolt 5
- USB-C (not Thunderbolt)
- None
- USB-A
- 2
- HDMI
- 1× HDMI 2.1
- MagSafe
- None
- Headphone jack
- 3.5 mm, high-impedance
- SD card
- UHS-II
- Ethernet
- 10Gb
- Front
- 2 Thunderbolt 5, SDXC UHS-II
- Rear
- 4 Thunderbolt 5, 2 USB-A, HDMI 2.1, 10Gb Ethernet
Display
- Panel
- No built-in display
- External displays
- 8 — Eight 6K at 60Hz or 4K at 144Hz, or four 8K at 60Hz
Audio
- Speakers
- 1
- Microphones
- 0
- Spatial Audio
- No
- Dolby Atmos
- Yes
- Audio
- Built-in speaker, 3.5 mm headphone jack with high-impedance headphone support, HDMI multichannel audio
Wireless
- Wi-Fi
- Wi-Fi 6E (802.11ax)
- Bluetooth
- 5.3
Battery and power
- Power adapter
- Internal PSU (480W max)
Chip
- CPU layout
- 20 performance + 8 efficiency
- Neural Engine
- 32-core
- Media engine
- Hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW; two video decode engines; four video encode engines; four ProRes encode and decode engines; AV1 decode
- Neural Engine index
- 226
- Media engine index
- 1404
- Hardware ray tracing
- Yes
- Memory bandwidth
- 819 GB/s
In the box
- macOS at launch
- macOS
- Cable
- Power cord
Related in Mac Studio
FAQ — Mac Studio on MacDiff
What is the CPU index of this Mac Studio?
This configuration (M3 Ultra (28-CPU/60-GPU)) has a CPU index of 300, about ×3.00 the MacBook Air M1 baseline of 100 on MacDiff.
What is the GPU index?
GPU index 737 (≈ ×7.37 vs M1). Indices are relative references, not raw Geekbench scores.
How does it compare to the MacBook Air M1?
Relative to the fixed MacDiff baseline (100/100), this page shows roughly ×3.00 CPU and ×7.37 GPU for the selected memory/storage config. Use Compare to stack it against other Macs.