The T2 chip integrates several previously separate components, including the system management controller, image signal processor, audio controller, and SSD controller. 2018 MacBook Pros have an Apple T2 chip with "Hey Siri" support, versus an Apple T1 chip in 2017 models.AMD's Radeon Pro graphics cards now come with 4GB of GDDR5 memory standard on 15-inch models, while 13-inch models now have 128MB of embedded DRAM, compared to 64MB on 2017 models.Overall battery life remains up to 10 hours per full charge.
15-inch models have much-requested support for up to 32GB of DDR4 RAM, compared to 16GB of LPDDR3 RAM on 2017 models, accommodated by a 10 percent increase in the battery's watt-hour rating.Quad-core 13-inch models with the Touch Bar are now available, up to 2.7GHz, while 2017 models were dual-core up to 3.5GHz. Apple says the 15-inch model is up to 70 percent faster, and the 13-inch model is up to two times faster, than the equivalent 2017 models with seventh-generation Intel Core processors in benchmarks.ġ5-inch models can now be maxed out with a 2.9GHz six-core Core i9 processor, while the previous generation topped out at a 3.1GHz quad-core Core i7.
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