Intel's new lineup of Core M processors appropriate for the 12-inch Retina MacBook will provide up to 10 hours of battery life, between 10%-20% faster CPU performance and up to 40% faster graphics compared to equivalent Broadwell chips.
CPU World accurately shared Core m3, Core m5 and Core m7 specifications last week, with all three families of chips including Intel HD 515 graphics, 4MB of L3 cache and 4.5 watt thermal design power (TDP).
The low-end Core m3 6Y30 replaces the Core M-5Y31 and is likely suited for the base model 12-inch MacBook sold for $1,299. The mid-tier Core m5 6Y54 and Core m5 6Y57 replace the Core M-5Y51 on the high-end 12-inch MacBook sold for $1,599, while the high-end Core m7 6Y75 replaces the Core M-5Y71 for top-of-the-line 12-inch MacBook custom configurations.
Core M processors have configurable TDPs, allowing for performance and heat output to be adjusted. Core m3, m5 and m7 chips can be run at 3.5-3.8 watts or be increased to 7 watts to allow for higher CPU clock speeds. For the current 12-inch MacBook, Apple boosted the 900 MHz 5Y31 chip to 1.1 GHz, 1.1 GHz 5Y51 chip to 1.2 GHz and 1.2 GHz 5Y71 chip to 1.3 GHz.
Ars Technica notes that Core M processors should be available to Apple and other PC makers now, meaning that Core m3, m5 and m7-powered notebooks could begin shipping within the next few months. However, given that the 12-inch MacBook just launched in April, it remains uncertain if Apple is willing to release updated models this soon or hold off until 2016.
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