https://www.theverge.com/2019/3/7/18254456/microsoft-surface-book-2-quad-core-i5-release-date-news-specs > Microsoft looks set to refresh its cheapest Surface Book 2 laptop in the coming weeks, according to retailer listings first spotted by WinFuture. The biggest change is expected to be the laptop’s CPU, which appears to be getting a bump from a dual-core i5-7300U to a quad core i5-8350U. > As well as adding two additional cores, the i5-8350U also modestly bumps the processor’s maximum boost clock speed up from 3.5GHz to 3.6GHz. Overall, that should result in a 50 percent rise in multi-core computing power. We saw the performance for ourselves during our review of the Surface Pro 6.