Apple Mac Studio “M1 Ultra” 20 CPU/48 GPU Specs

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Apple Mac – A2615 – MJMW3LL/A

About this Apple Mac

Apple launched the Mac Studio M1 Ultra (20 CPU/48 GPU) on March 08, 2022. This model is launched to assist professionals in creative fields like video editing, music production, and graphic design. It boasts powerful processors, a high-performance GPU, a modular design, and a stylish minimalist appearance, making it a versatile and reliable workstation.

This Mac Studio model is a high-performance machine with the latest Apple M1 Ultra processor (20 cores, 3.2 GHz clock speed), a 48-core GPU, and a 32-core Neural Engine. It also features a Media Engine for efficient audio/video encoding and decoding. By default, it is equipped with 64 GB RAM and upgradeable 1 TB SSD storage with a standard storage speed of 7.4 GB/s for fast and reliable access to data, making it ideal for demanding workloads.

This Apple Mac Studio M1 Ultra model offers a comprehensive array of connectivity options, including two Thunderbolt 4 ports and an SDXC (UHS-II) card slot on the front and four Thunderbolt 4 ports, two USB-A ports, an HDMI port, a 10-Gigabit Ethernet port, and a 3.5 mm headphone jack on the back. It also supports Wi-Fi 6 (802.11ax) and Bluetooth 5.0 for stable wireless connections.

All the internal architecture is enclosed in a silver compact aluminum cuboid case weighing around 7.9 lbs. (3.6 kg).

3.2 GHz Apple M1 Ultra

64 GB

1 TB SSD

N/A

Storage & Memory

This model comes with an upgradable 1 TB SSD storage. Apple reported that the storage is not user accessible but can be configured with an additional 2 TB, 4 TB, or 8 TB SSD for an extra cost at the time of the system purchase. This upgrade provides enough storage for files, documents, and media content. The standard storage speed is 7.4 GB/s for quick access to data.

Processor & Graphics Processing Unit (GPU)

This Mac Studio is powered by Apple’s M1 Ultra 64-bit SoC processor with 20 cores (16 performance cores, 4 efficiency cores) clocked at 3.2 GHz. This processor is genuinely two Apple M1 Max processors connected using UltraFusion technology to deliver enhanced performance. It also has a 48-core GPU and a 32-core Neural Engine capable of performing up to 22 trillion operations per second. The Neural Engine accelerates AI/data-intensive workloads. With a memory bandwidth of 800GB/s, it provides fast access to memory for smooth performance.

The device comes with pre-installed macOS 12.3 (21E230).

Memory & Architecture

This model has 64 GB onboard RAM. This device’s fast RAM can handle challenging projects in areas like video editing, music production, and graphic design. Users who require additional memory can choose an upgrade to 128 GB of RAM during the purchasing process. The device is based on 64-bit architecture, like all Mac Studio models.

Upgradability

The RAM for this Apple Mac Studio M1 Ultra can be easily upgraded from its default 64 GB to 128 GB at the time of purchase. In addition to upgradable memory, this Mac Studio also offers users the option to upgrade its storage capacity to 2 TB, 4 TB, or 8 TB SSD at the time of purchase.

This model comes pre-installed with macOS 12.3 (21E230); the device can also be upgraded to the latest version.

Inclusive Features:

Equipped with Apple’s M1 Ultra processor featuring 20 cores
The clock speed of 3.2 GHz
A powerful 48-core GPU
High-performance 32-core Neural Engine
Memory bandwidth of 800 GB/s
Features 96 MB System Level Cache
Offers 64 GB of onboard RAM (upgradable to 128 GB)
Comes with a default 1 TB SSD storage (upgradable to up to 2 TB, 4 TB, or 8 TB SSD)
Standard storage speed of 7.4 GB/s
Media Engine for efficient encoding and decoding of audio and video
Various physical ports and wireless connectivity options
The connection of up to five simultaneous displays
Pre-installed with macOS 12.3 (21E230)
Cuboid case design

Introduced: March 8, 2022		Discontinued: N/A
Display Details		Memory
Display Support	5 Displays	Level 1 Cache	192k+128k x16, 128k+64k x4
Resolution	6K	Level 2/Level 3 Cache	12 MB x16, 4 MB x4
Processor		RAM Type	Unified
Processors	1 (20 Cores)	Min. RAM Speed	N/A
Architecture	64-Bit	Standard RAM	64 GB
Speed	3.2 GHz	Maximum RAM	128 GB
Type	Apple M1 Ultra	RAM Slots	None
Processor Upgrade	Soldered	Motherboard RAM	64 GB
FPU	Integrated	Graphics
System Bus Speed	N/A	Video Card	48-Core
Cache Bus Speed	N/A	VRAM Type	Integrated
ROM/Firmware	Proprietary	Standard VRAM	Integrated
EFI Architecture	64-Bit	Maximum VRAM	Integrated
Storage		Inclusive Features and Ports
Standard Storage	1 TB SSD	Standard Optical Drive	None
Storage Speed	7.4 GB/s	Standard Ethernet	10 Gb
Storage Dimensions	N/A	Standard Modem	None
Storage Interface	Proprietary (NAND)	Standard AirPort	802.11ax (Wi-Fi 6)
Battery		Standard Bluetooth	5.0
Type	N/A	USB Port 3.0	6 (4); 2 (A)
Battery Life	N/A	FireWire Ports	None
Description		Keyboard	None
Case Type	Cuboid	Expansion Slots	SDXC (UHS-II)
Form Factor	Mac Studio	Sound In	None
Apple Order No	MJMW3LL/A	Microphone	None
Apple Subfamily	M1 Ultra, 2022	Headphone	1
Apple Model Number	A2615 (EMC 3988)	Sound Out	1
Model ID	Mac13,2	Power Adapter	None

Identifier reference: MJMW3LL/A, A2615, EMC 3988, Mac13,2. Use these together because one Apple identifier can sometimes cover multiple configurations.

Last reviewed by Techable: January 13, 2025Identifiers checked: order number, A-number, EMC, and model identifier when available.

Model summary

This Mac Studio at a glance

Family: Mac Studio
Order Number: MJMW3LL/A
Model Number: A2615
EMC: 3988
Model ID: Mac13,2
Chip: M1 Ultra
Year: 2023

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Next steps

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Common questions

Is MJMW3LL/A the same as A2615?

Not exactly. MJMW3LL/A usually points to a specific retail configuration, while A2615 identifies the broader Apple hardware family. Always check the EMC and model identifier too.

What Mac Studio is model A2615?

A2615 is the Apple A-number shown for this Mac Studio family. Use the order number, EMC, and model identifier on this page to narrow the exact configuration.

What does EMC 3988 mean?

The EMC number is another Apple hardware identifier. It helps separate closely related models that may share a similar name, year, or A-number.

Can the RAM or SSD be upgraded?

Check the spec table for the exact configuration. Many newer Apple Silicon Macs have memory and storage integrated into the board, so RAM and SSD upgrades are often not practical after purchase.

What macOS versions work with this model?

Use the model identifier, release year, and processor family from the spec table when checking macOS compatibility. Compatibility can change as Apple releases new macOS versions.

Is this Mac Studio still worth buying used?

It can be, depending on price, battery health, memory, storage, and condition. Compare this exact order number and model identifier against similar Techable listings before buying.

How much is this Mac Studio worth?

Value depends on RAM, storage, battery health, cosmetic condition, accessories, and market demand. Use the SellMac path on this page for a quote or use the identifiers here when comparing resale prices.

What should I search if this page is not the exact configuration?

Search the order number first when available, then compare the A-number, EMC, model identifier, year, chip, RAM, and storage. The same A-number can cover more than one configuration.

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