They are closely matched: Apple M1 Ultra GPU scores 77/100 and Apple M4 Pro GPU (20 Core) scores 75/100 in our overall comparison — within 2 points. Neither is a clear winner overall, so the decision comes down to the specific features and price that matter most to you.
Apple M1 Ultra GPU vs Apple M4 Pro GPU (20 Core)
Verdict
Our overall take, at a glance
Key takeaways
- Apple M1 Ultra GPU leads Apple M4 Pro GPU (20 Core) overall by 12 points (62 vs 50 out of 100).
- Apple M1 Ultra GPU stands out on Core Specifications Maximum Power: 120 W, Memory Capacity: 64 GB, Memory Technology: Unified.
Apple M1 Ultra GPU leads overall
Apple M1 Ultra GPU
62
Apple M4 Pro GPU (20 Core)
50
Why it stands out
- Core Specifications Maximum Power: 120 W
- Memory Capacity: 64 GB
- Memory Technology: Unified
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Aug 2026.
Apple M1 Ultra GPU
The Apple M1 Ultra GPU is a high-end integrated graphics processor designed for workstation-class Mac desktops. Built by connecting two M1 Max chips via Apple's proprietary UltraFusion interconnect, the processor scales up to 64 GPU cores and shares up to 128 GB of unified LPDDR5X memory. It is engineered for demanding creative tasks that require massive memory bandwidth and processing parallelism.
Best for Memory-intensive professional workloads such as high-resolution video editing anBest for Workstation users seeking high power-efficiency and unified system architecture
Pros
- Features an UltraFusion interconnect that delivers up to 2.5 TB/s of low-latency bandwidth between the dual-die setup
- Provides access to a massive unified memory pool of up to 128 GB, surpassing the VRAM limit of typical discrete graphics cards
- Highly efficient design built on TSMC's 5 nm manufacturing process with 114 billion total transistors
Cons
- Underperforms compared to top-tier dedicated desktop graphics cards like the NVIDIA GeForce RTX 3090 in standard gaming and compute benchmarks
Apple M4 Pro GPU (20 Core)
The Apple M4 Pro is a System-on-a-chip (SoC) featuring a graphics processing unit (GPU), along with components like the CPU and NPU. It has specifications designed for use in various Apple products, including Mac Mini or iMac models (SOURCE 1). The GPU component of this chip consists of either 16 or 20 cores (SOURCE 1).
Best for laptopBest for desktop
Pros
- The M4 Pro features 16 or 20 GPU cores (SOURCE 1)
- Supports LPDDR5X memory with a theoretical maximum bandwidth of 273GB/sec (SOURCE 1)
Value for Money
Which is the better deal for the price
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Apple M1 Ultra GPU
Apple M4 Pro GPU (20 Core)
Performance
Higher benchmark score = faster
Apple M1 Ultra GPU20,500
Apple M4 Pro GPU (20 Core)28,000
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Review Videos
Hand-picked expert reviews for each product
Detailed Specifications
The full spec sheet, side by side
Frequently Asked Questions
Common questions about Apple M1 Ultra GPU vs Apple M4 Pro GPU (20 Core) comparison
Apple M1 Ultra GPU and Apple M4 Pro GPU (20 Core) are compared side by side above across every spec in the gpus category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 77/100 for Apple M1 Ultra GPU and 75/100 for Apple M4 Pro GPU (20 Core).
It's close — Apple M1 Ultra GPU (77/100) and Apple M4 Pro GPU (20 Core) (75/100) score almost the same. Pick based on price and the individual specs that matter most to you; the comparison above shows where each one pulls ahead.
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