![]() More importantly, Thunderbolt 2 introduces DisplayPort 1.2 support to the Airs, which when combined with the new Haswell GPUs will enable 4K output at 60Hz. However, Thunderbolt 2 allows file transfers in either direction to use the full 20Gbps of bandwidth, while the original was capped at 10Gbps read and 10Gbps write. Thunderbolt 2 doesn’t increase the total bandwidth of the interface-you still get a total of 20Gbps. The laptops stick with standard USB 3.0 ports and 802.11ac Wi-Fi for most of their connectivity, but the Thunderbolt port has been updated to Thunderbolt 2. We examined this CPU and GPU in depth in our review of Intel’s newest NUC mini PC, and we’ve seen other Broadwell chips in a variety of PC Ultrabooks. Overall, Broadwell provides a small increase in CPU and GPU power while enabling longer battery life. The base includes a 1.6GHz (2.7GHz Turbo) dual-core Core i5-5250U and an Intel HD 6000 GPU, 4GB of RAM, and 128GB PCI Express SSDs. ![]() Further Reading Liveblog: Apple’s “spring forward” event
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