Apple M1 Ultra 20 Core leads Apple M3 8 Core overall by 10 points (58 vs 48 out of 100).
Apple M1 Ultra 20 Core stands out on Core Specifications Cores: 20, Core Specifications Threads: 20, Core Specifications Base Frequency: 3.1 GHz.
Apple M1 Ultra 20 Core leads overall
Apple M1 Ultra 20 Core
58
Apple M3 8 Core
48
Why it stands out
Core Specifications Cores: 20
Core Specifications Threads: 20
Core Specifications Base Frequency: 3.1 GHz
Strengths Profile
Bigger shape = stronger. Whoever reaches further wins that category.
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.
Apple M1 Ultra 20 Core
The Apple M1 Ultra is an extremely powerful System-on-a-Chip designed for high-end, professional workstations. It combines two independently connected M1 Max units via the 'UltraFusion' interconnect to significantly increase computational throughput. This processor is suited for users who require maximum performance for intensive creative and scientific workloads.
Best for Professional video editingBest for 3D Rendering/VFXBest for Computational modeling
Pros
High core count structure, featuring a total of 20 CPU cores and dedicated high-bandwidth interconnectivity (Source 1)
Significant memory capacity options are available, supporting up to 128 GB of LPDDR5 RAM (Source 1)
Achieves exceptional performance by combining two M1 Max units, effectively doubling peak capabilities (Source 1)
Cons
The high resource requirements make it unsuitable for most general-purpose computing tasks
It is a discontinued processor, limiting modern upgrade paths and support options (Source 1)
The Apple M3 series is a System-on-a-Chip designed to power Apple's desktops, notebooks, and tablets. It belongs to the highly efficient ARM architecture family, succeeding previous generations of Apple silicon. This processor is engineered for performance across a broad spectrum of computing tasks, from standard productivity work to intense creative workloads.
Best for Creative ProfessionalsBest for High-Efficiency ComputingBest for General Productivity
Pros
Features dedicated neural processing hardware (NPU) designed to accelerate AI and machine learning workloads
Utilizes an advanced 3nm manufacturing process, contributing to industry-leading power efficiency
Employs a Unified Memory Architecture (UMA) that integrates system memory with the GPU for high bandwidth data access
The inclusion of specialized multimedia components supports decoding of multiple formats, including 8K H.265 and ProRes
Cons
The M3 architecture features varying memory bus widths in its Pro variants (e.g., the 192-bit bus limit for some models)
Accessory ports include Thunderbolt support, but specific port configurations vary widely across different SoCs and product lines
Performance benchmarks related to bandwidth can vary noticeably between lower-core-count M3 and higher-core-count M3 Max variants.
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Detailed Specifications
The full spec sheet, side by side
Core Specifications
Feature
Apple M1 Ultra 20 Core
Apple M3 8 Core
Cores
20
8
Threads
20
8
Base Frequency
3.1 GHz
2.748 GHz
Base Power Consumption
60 W
20 W
Maximum Frequency
3.7 GHz
4.056 GHz
Maximum Power Consumption
60 W
25 W
L1 Cache
1.28 KB
0.64 KB
L2 Cache
20 MB
4 MB
L3 Cache
0 MB
0 MB
Lithography Process
5 nm
3 nm
Is unlocked
No
No
Integrated Graphics
Feature
Apple M1 Ultra 20 Core
Apple M3 8 Core
Model
N/A
Benchmark
Feature
Apple M1 Ultra 20 Core
Apple M3 8 Core
PassMark CPU Mark
26,695
18,941
Specification Note
Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.