References to Next-Generation MacBook Pro Models Discovered in macOS 10.12.4 Beta

While the latest MacBook Pro with Touch Bar notebooks launched under four months ago, references to possible next-generation models have already been discovered in the latest macOS 10.12.4 beta.

Apple blog Pike's Universum uncovered a trio of motherboard identifiers that do not correspond with any current MacBook Pro model, but use the exact same processor power management data as 13-inch and 15-inch MacBook Pro models released in late 2016. The plist files do not exist in previous macOS Sierra versions.

The next-generation MacBook Pro models would likely be powered by Intel's faster Kaby Lake processors, which are the natural successor to Skylake processors used in late 2016 models. This would be in line with a report from six weeks ago claiming the MacBook Pro will receive only minor bumps in processing power for 2017.

Mac-B4831CEBD52A0C4C would likely be for two new 13-inch MacBook Pro models with function keys. The models would likely have Kaby Lake processors with a maximum Turbo Boost of 3400 MHz and 4000 MHz respectively.

Mac-CAD6701F7CEA0921 would likely be for three new 13-inch MacBook Pro with Touch Bar models. These notebooks would likely have Kaby Lake processors with a maximum Turbo Boost of 3500/3700 MHz and 4000 MHz respectively.

Mac-551B86E5744E2388 would likely be for three new 15-inch MacBook Pro with Touch Bar models. These notebooks would likely have Kaby Lake processors with a maximum Turbo Boost of 3800/3900 MHz and 4100 MHz respectively.

The blog said it checked the performance bias setting of each motherboard and determined that they are unlikely to be for desktop models such as the iMac and Mac Pro. There is also no GPU data as of yet.

The blog cross-referenced Intel's lineup of Kaby Lake processors currently available with the motherboard identifiers and was able to determine which chips are likely to be used in each new MacBook Pro:

13-inch MacBook Pro without Touch Bar

Intel Core i5-6360U 2.0 GHz (max Turbo Boost 3.1 GHz) with Intel® Iris™ Graphics 540 (15W)
Will be replaced by the:
Intel Core i5-7260U 2.2GHz (max Turbo Boost 3.4 GHz) with Intel® Iris™ Plus Graphics 640 (15W)

Intel Core i7-6660U 2.4 GHz (max Turbo Boost 3.4 GHz) with Intel® Iris™ Graphics 540 (15W)
Will be replaced by the:
Intel Core i7-7660U 2.5 GHz (max Turbo Boost 4.0 GHz) with Intel® Iris™ Plus Graphics 640 (15W)

13-inch MacBook Pro with Touch Bar

Intel Core i5-6267U 2.9 GHz (max Turbo Boost 3.3 GHz) with Intel® Iris™ Graphics 550 (28W)
Will be replaced by the:
Intel Core i5-7267U 3.1 GHz (max Turbo Boost 3.5 GHz) with Intel® Iris™ Plus Graphics 650 (28W)

Intel Core i5-6287U 3.1 GHz (max Turbo Boost 3.5 GHz) with Intel® Iris™ Graphics 550 (28W)
Will be replaced by the:
Intel Core i5-7287U 3.3 GHz (max Turbo Boost 3.7 GHz) with Intel® Iris™ Plus Graphics 650 (28W)

Intel Core i7-6567U 3.3 GHz (max Turbo Boost 3.6 GHz) with Intel® Iris™ Graphics 550 (28W)
Will be replaced by the:
Intel Core i7-7567U 3.5 GHz (max Turbo Boost 4.0 GHz) with Intel® Iris™ Plus Graphics 650 (28W)

15-inch MacBook Pro with Touch Bar

Intel Core i7-6700HQ 2.6 GHz (max Turbo Boost 3.5 GHz) with Intel® HD Graphics 530 (45W)
Will be replaced by the:
Intel Core i7-7700HQ 2.8 GHz (max Turbo Boost 3.8 GHz) with Intel® HD Graphics 630 (45W)

Intel Core i7-6820HQ 2.7 GHz (max Turbo Boost 3.6 GHz) with Intel® HD Graphics 530 (45W)
Will be replaced by the:
Intel Core i7-7820HQ 2.9 GHz (max Turbo Boost 3.9 GHz) with Intel® HD Graphics 630 (45W)

Intel Core i7-6920HQ 2.9 GHz (max Turbo Boost 3.8 GHz) with Intel® HD Graphics 530 (45W)
Will be replaced by the:
Intel Core i7-7920HQ 3.1 GHz (max Turbo Boost 4.1 GHz) with Intel® HD Graphics 630 (45W)

Apple seeded the first beta of macOS 10.12.4 to developers on January 24, and additional betas should follow. It is highly unlikely Apple will launch new MacBook Pros until the software update is officially released at the earliest, which should happen by late February or early March based on previous releases.

Apple could feasibly launch next-generation MacBook Pro models at any point following the release of macOS 10.2.4, but its late 2016 models are still rather new. WWDC 2017 in June is likely the earliest possibility for a refresh, but previous rumors also point towards a launch in the second half of 2017 or later.

Last month, KGI Securities analyst Ming-Chi Kuo said new Kaby Lake-equipped MacBook Pros will enter mass production in the July quarter. He also mentioned a "15-inch MacBook" that will include 32GB of RAM and enter mass production in the early fourth quarter, which starts in September.