It appears from the review slides that there are some versions of the above Ultrabook with 8GB RAM, but our sample included 4GB DDR3-1600 from Samsung in a dual-channel configuration. As we’ll see in a moment, the RAM is soldered straight onto the motherboard, so there’s no upgrading it. This isn’t a huge issue for our benchmarks and testing, but if I were an end user I would definitely go straight to 8GB these days (assuming you can find such an Ultrabook). For one, opening up an Ultrabook is typically more complex and/or frustrating than getting at the RAM/HDD in other laptops[/b], but more importantly it looks like most Ultrabooks are soldering RAM onto the motherboard—the extra thickness of an SO-DIMM might not seem like much, but when you’re trying to get under 18mm every bit of savings counts!