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If you’ve been holding out for Apple’s most powerful laptops, your wait appears to be almost over. Fresh evidence suggests the high-end M5 Pro and M5 Max MacBook Pros are on the cusp of an announcement, ready to join the already-available vanilla M5 MacBook Pro (currently hitting a solid deal at $1,875 on Amazon).
The rumor mill has been churning for weeks, but the latest clue comes from a reliable source: Apple's own software. As is often the case, unreleased System-on-a-Chip (SoC) identifiers have surfaced in a beta build, this time within the iOS 26.3 beta.
Developer and reliable tipster Nicolás Álvarez discovered references to two unknown Apple silicon chips with the codenames T6051 and T6052, associated with platform names H17C and H17D.
You can read the full breakdown of this discovery over at MacRumors.
Following Apple’s established naming patterns, as expertly decoded by MacRumors, the "C" and "D" suffixes strongly point to these being the M5 Max and the mythical M5 Ultra chips. This finding, however, presents an immediate puzzle for enthusiasts.
Where is the M5 Pro?
With the high-end MacBook Pro refresh expected literally any day now, the complete absence of a clear "M5 Pro" identifier in this leak is confusing. Industry watchers were certain the lineup would mirror the previous generation: M5 Pro, M5 Max, and later, an M5 Ultra for desktop systems.
This omission opens up two compelling possibilities:
- Apple simply hasn’t added the identifier for the M5 Pro chip to this particular beta yet, which is entirely plausible.
- The timeline for other products might be shifting. Could this hint that a revamped Mac Studio—a natural home for an M5 Ultra chip—is further along in development and might see a surprise early release alongside or shortly after the laptops?
While some speculation suggests Apple could bring the Ultra chip to a laptop, that notion faces massive practical hurdles. As MacRumors rightly notes, the thermal and power demands of an "Ultra"-class SoC (effectively two Max chips fused together) are prohibitively high for a portable form factor without severe compromises to battery life, thickness, and fan noise. The Max chip is almost certainly the ceiling for the MacBook Pro.
What This Means for Buyers
The core takeaway remains clear: new high-performance MacBook Pros are coming very soon. Whether the launch skips the Pro variant this round or the software leak is simply incomplete, the arrival of M5 Max silicon in Apple's flagship laptops will mark a significant performance leap for creative professionals and power users.
All eyes are now on Apple for an official announcement, which could come via a simple press release at any moment. In the meantime, the current M5 MacBook Pro remains a formidable machine and a great value for those who don't need extreme graphics and CPU cores.
Source: Nicolás Álvarez via MacRumors
