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iPhone 17 Pro Max used to boost MacBook Pro AI performance
A developer has demonstrated a method to enhance the AI processing capabilities of a MacBook Pro M4 Pro by utilizing an iPhone 17 Pro Max as a secondary computational resource. Using an open-source software project called ‘backburner’ available on GitHub, the setup distributes the workload of running the Qwen 3.6 27B large language model across both devices.
The process involves the MacBook Pro executing the first 40 layers of each 256-token batch before transferring the data via a 10 Gb/s USB-C connection to the iPhone. The iPhone then uses its A19 Pro chip's GPU to process the remaining 24 layers (layers 41 to 64). This parallelization allows the MacBook to begin the next batch immediately, increasing prefill performance by up to 44% depending on the context size.
Beyond layer processing, the iPhone also assists with memory management. When the context window exceeds 64,000 tokens, the iPhone takes over the management of the KV cache and attention calculations for older data. Additionally, the iPhone's Neural Engine is utilized to optimize historical conversational context, helping to reduce latency during long sessions.
Entities
Apple · GitHub · MacBook Pro · Qwen · iPhone 17 Pro Max
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 3 SOURCES] A developer named StayLameBro used an iPhone 17 Pro Max to boost the AI performance of a MacBook Pro M4 Pro. www.hwupgrade.it · www.tomshardware.fr · www.world-today-news.com
- [● 3 SOURCES] The MacBook Pro executes layers 1 through 40 of each 256-token batch, while the iPhone processes layers 41 through 64. www.hwupgrade.it · www.tomshardware.fr · www.world-today-news.com
- [● 2 SOURCES] The iPhone's Neural Engine is used to compile historical conversational context to mitigate latency. www.tomshardware.fr · www.world-today-news.com
- [● 3 SOURCES] The setup yielded up to a 44 percent performance increase when running the Qwen 3. 6 27B AI model. www.hwupgrade.it · www.tomshardware.fr · www.world-today-news.com
- [○ 1 SOURCE] The distributed processing is achieved using an open-source software project called ‘backburner’ hosted on GitHub. www.world-today-news.com
- [○ 1 SOURCE] The iPhone 17 Pro Max is connected to the MacBook Pro via a 10 Gb/s USB-C connection. www.hwupgrade.it
- [○ 1 SOURCE] When context exceeds 64k tokens, the iPhone shifts to managing the KV cache and calculating attention on older data. www.hwupgrade.it