The maximum amount of memory that could be allocated to the graphics processor has been increased from 1024 MB to 1536 MB on Macs with an Intel HD 4000 GPU. Compared to OS X Yosemite, Apple says that opening PDFs is four times faster, app switching and viewing messages in Mail is twice as fast and launching apps is 40% faster. OS X El Capitan includes features to improve the security, performance, design and usability of OS X. The upgrade varies in size depending upon which Apple Mac computer it is being installed on in most scenarios, it will require about 6 GB of disk space. The following computers support features such as Handoff, Instant Hotspot, AirDrop between Mac computers and iOS devices, as well as the new Metal API: They can only run OS X El Capitan if they have at least 2 GB of RAM. Of these computers, the following models were equipped with 1 GB RAM as the standard option on the base model when they were shipped originally. These computers can run El Capitan, provided they have at least 2 GB of RAM, with an exception:

For example, Apple notes that the newly available Metal API is available on 'all Macs since 2012'. System requirements Īll Macintosh products that can run Mountain Lion, Mavericks, or Yosemite can run El Capitan, although not all of its features will work on older models. OS X El Capitan was released to end users on September 30, 2015, as a free upgrade through the Mac App Store. There were multiple betas released after the keynote. The first public beta was made available on July 9, 2015. The first beta of OS X El Capitan was released to developers shortly following the WWDC keynote on June 8, 2015. OS X El Capitan received far better reviews than Yosemite. El Capitan is the final version to be released under the name OS X.

Following the California location-based naming scheme introduced with OS X Mavericks, El Capitan was named after a rock formation in Yosemite National Park. It focuses mainly on performance, stability, and security. OS X El Capitan ( / ɛ l ˌ k æ p ɪ ˈ t ɑː n/ el KAP-i- TAHN) ( version 10.11) is the twelfth major release of macOS (named OS X at the time of El Capitan's release), Apple Inc.'s desktop and server operating system for Macintosh.

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