external graphics card for imac 21.5 late 2013

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.

External graphics card for imac 21.5 late 2013