Exciting Developments in Apple's Chip Technology! The latest beta version of iOS 26.3 has unveiled intriguing references to two upcoming chips from the M5 series, as highlighted by the diligent work of Nicolás Alvarez and reported by MacRumors.
In this release candidate for iOS 26.3, two unreleased System-on-Chips (SoCs) are identified: T6051 and T6052, which are associated with platform names H17C and H17D, respectively. The number "17" is significant as it points to the M5 generation, with the standard M5 chip designated as H17G. The letter designations used here are telling; typically, "C" indicates a Max variant while "D" suggests an Ultra version. For reference, standard models are denoted with "G" and Pro models with "S."
Interpreting these identifiers through Apple's historical naming conventions suggests we might be looking at an M5 Max and an M5 Ultra chip on the horizon. However, intriguingly absent from this beta is a chip labeled T6050 H17S, which we would expect to be associated with an M5 Pro variant.
As we eagerly anticipate new MacBook Pro models that are rumored to feature M5 Pro and M5 Max chips, the discovery of these chip references raises some questions. Could it mean that there is indeed an M5 Pro in the works, alongside the M5 Max and M5 Ultra, but it simply hasn't been included in the current iOS 26.3 code? Alternatively, could Apple be altering its numbering system? Another possibility is that the tech giant is gearing up to release MacBook Pro models featuring both the M5 Max and M5 Ultra chips?
To summarize the findings from the beta:
- Chip 1: T6051, H17C – Likely corresponds to M5 Max.
- Chip 2: T6052, H17D – Probably refers to M5 Ultra.
- Chip Not Present: T6050, H17S – Expected identifier for M5 Pro.
Historically, all of Apple's Max chips have adopted the "C" designation, such as the M1 Max (H13C), M2 Max (H14C), M3 Max (H15C/H15M), and M4 Max (H16C). The Ultra chips have consistently used the "D" designation, seen in the M1 Ultra (H13D), M2 Ultra (H14D), and M3 Ultra (H15D). Notably, there was no Ultra variant for the M4 chip.
The reasons behind the visibility of just the M5 Max and M5 Ultra remain somewhat unclear. Nevertheless, rumors are swirling about the imminent launch of new MacBook Pro models featuring these advanced M5 chips, along with speculation about a forthcoming Mac Studio utilizing the M5 Ultra, although concrete details about its release are still awaited.
What do you think about Apple's chip strategy? Are they making a smart move or risking confusion among consumers? Join the discussion in the comments below!
