Apple could use tomorrow's WWDC keynote to raise the performance bar for top-end MacBook Pros, new benchmarks suggest.

A "MacBookPro14,3" device has appeared in Geekbench listings using Intel's Core i7-8750H processor, a part of the Coffee Lake family. The chip has a base clock speed of 2.21 gigahertz, slower than current Pros, but can boost up to 4.1 gigahertz and more crucially sports six cores — even a maximum-spec 2017-edition Pro is limited to four.

The laptop has a single-core score of 4,902, but a multi-core score of 22,316, putting it well beyond any other MacBook on Geekbench, the closest competition coming in at 16,999.

A MacBook Pro refresh is one of a number of anticipated announcements for WWDC. The last Pro update came in conjunction with WWDC 2017.

Notably, the "14,3" device is also listed as equipped with 32 gigabytes of DDR4 RAM, double the peak on 2017 Pros. It had been speculated that Apple would stick with a 16-gigabyte cap until later this year, if not 2019.

Apple's WWDC 2018 keynote is largely expected to concentrate on software, specifically previews of macOS 10.14, iOS 12, tvOS 12, and watchOS 5. Apple could also introduce new 12-inch MacBooks, and upgrades to Siri and ARKit.

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