AMD Radeon RX 6600S vs Apple M1 Ultra GPU

Updated Sep 2026 · Scored by the Let’s Compare Data Engine · How we score

For most buyers the AMD Radeon RX 6600S is the better pick — it scores 52/100 to the Apple M1 Ultra GPU's 42, leading on Core Specifications and API Support. Choose the Apple M1 Ultra GPU instead if memory and theoretical performance matter most to you, where it comes out ahead.

Apple M1 Ultra GPU has no published G3D Mark result, so it scores lower.

Verdict

Our overall take, at a glance

AMD Radeon RX 6600S leads overall

AMD Radeon RX 6600S

Apple M1 Ultra GPU

Why it stands out

Miscellaneous Platform: Laptop
API Support Vulkan Version: 1.3 (8% more)

Winner by category for AMD Radeon RX 6600S vs Apple M1 Ultra GPU
Category	AMD Radeon RX 6600S	Apple M1 Ultra GPU	Winner
Core Specifications	69	65	AMD Radeon RX 6600S
Memory	26	80	Apple M1 Ultra GPU
API Support	77	46	AMD Radeon RX 6600S
Theoretical Performance	37	73	Apple M1 Ultra GPU
Benchmark	59	20	AMD Radeon RX 6600S
Miscellaneous	46	27	AMD Radeon RX 6600S

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Sep 2026.

AMD Radeon RX 6600S

The AMD Radeon RX 6600S is a dedicated graphics processor designed for mobile platforms, utilizing a 7-nanometer manufacturing process. It comes equipped with 8 GB of dedicated GDDR6 memory on a 192-bit bus, achieving a memory bandwidth of 432 GB/s. With an adjustable power envelope between 50 and 100 watts, it balances thermal efficiency and performance for portable gaming setups.

Best for Mid-range gaming on portable and thin-and-light laptop designsBest for Content creation tasks requiring dedicated VRAM on the go

Pros

Dedicated 8 GB GDDR6 memory prevents the system from sharing main memory for graphical tasks
High memory bandwidth of 432 GB/s supported by a wide 192-bit bus
Flexible power requirements from 50W to 100W allow for integration into thinner laptop form factors
Up-to-date API support including Vulkan 1.3 and DirectX 12

Cons

Peak single-precision performance of 7.0 TFLOPS may limit frame rates on demanding modern AAA games at high settings

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…Best 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

Source

Apple M1 - WikipediaProvided architectural specifications of the M1 Ultra chip, including GPU core counts, memory bandwidth, fabrication process, and transistor volume.

Video — reviews used (1)

Provided comparative real-world performance observations showing the GPU trailing the NVIDIA GeForce RTX 3090 in compute and gaming benchmarks.

Generated Aug 5, 2026

Value for Money

Which is the better deal for the price

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AMD Radeon RX 6600S

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Apple M1 Ultra GPU

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Review Videos

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Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
Base Frequency	2.359 GHz	1.296 GHz
Base Power	N/A	N/A
Maximum Frequency	2.655 GHz	1.296 GHz
Maximum Power	80 W	N/A
Lithography Process	7 nm	5 nm29% less

Memory

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
Capacity	4 GB	64 GB1500% more
Technology
Bus Width	128 bit	N/A
Bandwidth	224 GB/s	800 GB/s257% more
Is Shared	No	Yes

API Support

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
DirectX Version	12	N/A
OpenGL Version	4.6	4.1
Vulkan Version	1.38% more	1.2
OpenCL Version	2.1	1.2

Theoretical Performance

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
Pixel Rate	120.3 GP/s	165.9 GP/s
Texture Rate	244.2 GT/s	663.6 GT/s
Performance (FP16)	15.63 TFLOPS	42.4 TFLOPS171% more
Performance (FP32)	7.81 TFLOPS	21.2 TFLOPS171% more
Performance (FP64)	448.1 GFLOPS	N/A

Benchmark

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
G3D Mark	13,569	N/A

Miscellaneous

Feature	AMD Radeon RX 6600S	Apple M1 Ultra GPU
Release Date	January 4, 2022	March 18, 2022
Platform

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

Frequently Asked Questions

Common questions about AMD Radeon RX 6600S vs Apple M1 Ultra GPU comparison

They are closely matched: AMD Radeon RX 6600S scores 46/100 and Apple M1 Ultra GPU scores 44/100 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.

AMD Radeon RX 6600S and Apple M1 Ultra GPU 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 46/100 for AMD Radeon RX 6600S and 44/100 for Apple M1 Ultra GPU.

It's close — AMD Radeon RX 6600S (46/100) and Apple M1 Ultra GPU (44/100) 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.