Razer has a penchant for rapidly upgrading it’s laptops, so when I reviewed the company’s Blade Stealth laptop a few weeks ago, it was with the reservation that it would likely be upgraded to Intel’s latest processor by the end of the year. Well, surprise, Razer has upgraded the Blade Stealth. This time though, it’s more than the usual small performance bumps between generations. Kaby Lake R, as Intel’s 8th-gen mobile chips are called, is said to provide a 40 percent boost in performance for multi-tasking applications. That’s because rather than two cores, it has four – something normally reserved…

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