IBM, working with Samsung and GlobalFoundries, has unveiled the world's first 5nm silicon chip. Beyond the usual power, performance, and density improvement from moving to smaller transistors, the 5nm IBM chip is notable for being one of the first to use horizontal gate-all-around (GAA) transistors, and the first real use of extreme ultraviolet (EUV) lithography.
GAAFETs are the next evolution of tri-gate finFETs: finFETs, which are currently used for most 22nm-and-below chip designs, will probably run out of steam at around 7nm; GAAFETs may go all the way down to 3nm, especially when combined with EUV. No one really knows what comes after 3nm.
Samsung revamped one of its 2016 hybrids while simultaneously creating a challenger to Microsoft's Surface family. Last year's Galaxy TabPro S was a thin-and-light tablet powered by a Skylake Core M processor and featuring an OLED display. While stunning, the OLED display raised questions about the longevity of the device, and the tablet itself was lacking in connectivity options.
The new Galaxy Book tries to fix some of that while keeping the good parts intact: it's a slim Windows tablet, accompanied by a folio keyboard case and S Pen stylus, that's vying to replace your regular laptop by enticing you with Ultrabook-grade internals. The Galaxy Book comes in 10- and 12-inch models, but both are very different, not just in their screen size, but in internal quality as well. While Samsung managed to right some of the wrongs of the TabPro S, it's hard to make a case for the Galaxy Book replacing your everyday work device.