The LAN controller (Broadcom) supports Gigabit Ethernet, the WLAN controller (also from Broadcom) supports 802.11a/b/g/n (both 2.4 and 5 GHz).
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Not much has changed from the predecessor. One thing up front: the somewhat low display resolution regrettably hasn't changed. Other changes we will discuss more thoroughly in the respective sections.
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Additionally, the USB ports have been updated to USB 3.0. Courtesy of the new processor generation is the integrated Intel HD Graphics 4000. This mobile CPU featured a 2.5 GHz core frequency and can overclock to a maximum of 3.1 GHz using Intel Turbo Boost. So what did change? The most noticeable difference is the Ivy Bridge dual-core CPU Intel Core i5-3210M. And why fix something that's not broken - the customers obviously appreciated the design. The chassis is still a slim unibody structure made from solid aluminum. The outside of the new MacBook Pro entry-level notebook looks almost identical to the predecessor (we are talking about the version "Early 2011", since we had no chance to test the "Late 2011"-model). Not everybody was happy: screen too small, display glossy, and not even a matte option? Fast forward a few years: the little MacBook Pro is now well-established and was refreshed recently, when Apple updated the current portfolio.
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When the "Unibody" MacBook was absorbed into the MacBook Pro line and debuted as MacBook Pro 13, it became the new entry-level "Pro" model. But fans don't quite agree on the entry-level notebook into the realm of Apple Pro notebooks. Today, the 15-inch MacBooks are commonly accepted, and the Retina model is a worthy successor to the now discontinued 17-inch version. If you asked any die-hard Apple user a few years back about the "ideal" MacBook Pro, he or she would have insisted on a 17-inch display, non-glare of course.