For months, pundits have been pointing to the long-awaited announcement of new iPad Air and iPhone SE models at Apple’s spring event. But last-minute leaks–not to mention the suggestive ‘Peek performance’ tagline attached to the invites–now suggest the Mac line-up could be bolstered by the arrival of high-power updates during tomorrow’s presentation. .

Writing in his Power On newsletter, knowledgeable Bloomberg reporter Mark Gurman reveals that, according to his sources, Apple “has been testing multiple Macs with a new chip in recent weeks that includes an eight-core CPU (four efficiency cores and four high-performance cores) and 10 GPU cores.
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