Apple discontinued the Mac Pro in March, ending a 20-year run for the machine that once defined the company's professional desktop lineup. Yet a new Bloomberg report from Mark Gurman reveals that the Mac Pro's fate could have looked very different.
According to the report, Apple developed multiple unreleased M2 Extreme and M3 Extreme chips, along with Mac Pro hardware built around them, before ultimately cancelling both projects. These processors were designed to sit above the Ultra tier, offering roughly twice the CPU and GPU core counts of their Ultra counterparts.
Popular Now: Ayaneo has officially brought high-end gaming PC pricing to handheldsAn M3 Extreme, for instance, would have doubled the M3 Ultra's 32-core CPU and 80-core GPU. The chips were ultimately abandoned due to high production costs and concerns that demand for a machine likely to cost well over $10,000 before upgrades would be too limited.
- Read more: Apple's future-gen M6, M7, M8 chips in development: up to 256-core CPU, 640-core GPU teased
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- Read more: Apple retires the Mac Pro with no plans for a successor, leaving the Mac Studio as its only high-end desktop

Gurman's report also reveals that Apple had two unreleased Mac Pro models in development. The first, codenamed J190, was an M3 Ultra-powered Mac Pro originally intended to launch alongside the M3 Ultra Mac Studio in early 2025, but it was cancelled.
The second, codenamed J170, was an Intel-based Mac Pro that remained in development even as Apple was well into its transition to Apple Silicon. Gurman says it was intended to address specific use cases, likely related to PCIe graphics card support, something Apple Silicon does not natively accommodate.

In the end, the Mac Pro's fate was sealed by the success of the far more affordable Mac Studio. When Apple launched the first Apple Silicon Mac Pro in 2023 with the same M2 Ultra chip found in the Mac Studio, it became difficult for most buyers to justify paying roughly twice the price for a larger tower whose main advantage was PCIe expansion.

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Which unreleased Mac Pro models (codenames) were in development and what chips were they planned to use?
Would the cancelled Extreme chips have made the Mac Pro cost more than $10,000 before upgrades, per the article?
What does the report say about the likelihood of the Mac Pro returning in the future?
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Without an Extreme chip to justify its premium, the Mac Pro no longer had a clear place in Apple's lineup. Gurman does not expect the machine to return anytime soon, if ever. Instead, Apple is expected to refresh the Mac Studio with an M5 Ultra chip as early as this fall.






