The 21.5-inch iMacs have one Thunderbolt port, while the 27-inch iMacs have two. Thunderbolt offers data transfer speeds up of 10Gbit per second, which is 12 times faster than FireWire 800 and 20 times faster than USB 2.0. Introduced earlier this year with the latest MacBook Pros, Thunderbolt can also be used with Thunderbolt-equipped storage devices. Thunderbolt can be used to attach Mini DisplayPort monitors. They are indicated by the lightning-bolt icons and are located between the FireWire 800 and ethernet ports.A new external connection called The 27-inch iMac has two Thunderbolt ports. Such upgrades void your warranty, which may also be a deterrent from performing the surgery. Do-it-yourself storage upgrades are possible with the new iMac, but it requires a good amount of skill and intestinal fortitude on the user’s part-opening up the case involves using suction cups to remove the front pane of glass that is held in place by magnets.
LATE 2013 IMAC 27 UPGRADE MEMORY UPGRADE
The three other iMac models each have a 1TB 7200-rpm hard drive and options to upgrade to a 2TB hard drive for $150, a 256GB solid-state drive (SSD) for $500, or a combination of a 256GB SSD and either a 1TB 7200-rpm hard drive ($600) or a 2TB 7200-rpm hard drive ($750).
The $1199 21.5-inch iMac has a 500GB, 7200-rpm hard drive and no upgrade options. The 21.5 inch iMac has support for up to 16GB of memory third party companies are offering 32GB memory upgrades for the new 27-inch iMac. Since two slots are empty when you buy an standard-configuration iMac, you can easily add more memory. The iMac has four memory slots located at the bottom of the iMac that are user-accessible. When you order an iMac through the Apple Online Store, you have the option to upgrade the memory to 8GB (a pair of 4GB modules) on all iMac models for $200, or to 16GB (four 4GB modules) on the 27-inch models for $600. MacBook Pros have both Hyper-Threading and Turbo Boost.)Īll iMacs come standard with 4GB of memory, installed as a pair of 2GB modules. To get an iMac with a processor that has both Turbo Boost and Hyper-Threading, you’ll have to select the $200 Core i7 upgrade option for the $1499 21.5-inch iMac or $1999 27-inch iMac. Hyper-Threading technology, which creates two virtual cores for each physical core present in the processor, improving performance.
However, the Core i5 processors in the standard-configuration iMacs do not have Intel’s Turbo Boost 2.0, which allows the processor to automatically speed up cores when needed. Each iMac has 6MB of shared 元 cache and support for Intel’s
Sandy Bridge microarchitecture, the processors integrate the CPU, cache, and memory controller on one chip, allowing for fast data access over fewer buses. Each new standard-configuration iMac features a Core i5 quad-core processor.
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