Apple M1 Ultra 20 Core vs Apple M4 (8 Core)
Verdict
Our overall take, at a glance
Key takeaways
- Apple M1 Ultra 20 Core leads Apple M4 (8 Core) overall by 9 points (58 vs 49 out of 100).
- Apple M1 Ultra 20 Core stands out on Core Specifications Cores: 20, Core Specifications Threads: 20, Core Specifications Base Power Consumption: 60 W.
Apple M1 Ultra 20 Core leads overall
Apple M1 Ultra 20 Core
58
Apple M4 (8 Core)
49
Why it stands out
- Core Specifications Cores: 20
- Core Specifications Threads: 20
- Core Specifications Base Power Consumption: 60 W
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)
Apple M4 (8 Core)
The Apple M4 is a specialized System-on-a-chip designed by Apple, forming the core processing unit for high-end devices, including modern iMacs and MacBook models. Featuring an advanced architecture that integrates CPU, GPU, and NPU components, it is primarily intended for professionals requiring strong performance in demanding creative and computational tasks.
Best for Professional Content CreationBest for AI/Machine Learning WorkloadsBest for High-Performance Computing (HPC)
Pros
- Incorporates an advanced Neural Processing Unit (NPU) with a notable capability to accelerate AI workloads, compared to previous generations of the chip.
- Supports hardware acceleration for modern functions like AV1 decoding, mesh shading, and ray tracing within its GPU architecture.
- Employs high-speed LPDDR5X unified memory, offering substantial bandwidth to support multiprocessing applications.
- The M4 series is built on a highly dense manufacturing process (3 nm), enabling the integration of numerous cores over 28 billion transistors.
Cons
- Specific core configurations (CPU/GPU counts) vary greatly across its Pro and Max variants, which requires careful selection for targeted performance needs.
- Memory bandwidth capacity is highly dependent on the specific model variant utilized, ranging from lower base limits to exceptionally high capacities.
Value for Money
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Apple M1 Ultra 20 Core
Apple M4 (8 Core)
Detailed Specifications
The full spec sheet, side by side